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Date: Fri, 22 Sep 2017 15:40:43 -0400
From: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
To: netdev@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, kernel@...oirfairelinux.com,
"David S. Miller" <davem@...emloft.net>,
Florian Fainelli <f.fainelli@...il.com>,
Andrew Lunn <andrew@...n.ch>,
Vivien Didelot <vivien.didelot@...oirfairelinux.com>
Subject: [PATCH net-next v2 1/3] net: dsa: use slave device phydev
There is no need to store a phy_device in dsa_slave_priv since
net_device already provides one. Simply s/p->phy/dev->phydev/.
While at it, return -ENODEV when it is NULL instead of -EOPNOTSUPP.
Signed-off-by: Vivien Didelot <vivien.didelot@...oirfairelinux.com>
---
net/dsa/slave.c | 126 ++++++++++++++++++++++++++------------------------------
1 file changed, 58 insertions(+), 68 deletions(-)
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 02ace7d462c4..3760472bf41d 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c
@@ -99,15 +99,15 @@ static int dsa_slave_open(struct net_device *dev)
}
if (ds->ops->port_enable) {
- err = ds->ops->port_enable(ds, p->dp->index, p->phy);
+ err = ds->ops->port_enable(ds, p->dp->index, dev->phydev);
if (err)
goto clear_promisc;
}
dsa_port_set_state_now(p->dp, stp_state);
- if (p->phy)
- phy_start(p->phy);
+ if (dev->phydev)
+ phy_start(dev->phydev);
return 0;
@@ -130,8 +130,8 @@ static int dsa_slave_close(struct net_device *dev)
struct net_device *master = dsa_master_netdev(p);
struct dsa_switch *ds = p->dp->ds;
- if (p->phy)
- phy_stop(p->phy);
+ if (dev->phydev)
+ phy_stop(dev->phydev);
dev_mc_unsync(master, dev);
dev_uc_unsync(master, dev);
@@ -144,7 +144,7 @@ static int dsa_slave_close(struct net_device *dev)
dev_uc_del(master, dev->dev_addr);
if (ds->ops->port_disable)
- ds->ops->port_disable(ds, p->dp->index, p->phy);
+ ds->ops->port_disable(ds, p->dp->index, dev->phydev);
dsa_port_set_state_now(p->dp, BR_STATE_DISABLED);
@@ -273,12 +273,10 @@ dsa_slave_fdb_dump(struct sk_buff *skb, struct netlink_callback *cb,
static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
- struct dsa_slave_priv *p = netdev_priv(dev);
+ if (!dev->phydev)
+ return -ENODEV;
- if (p->phy != NULL)
- return phy_mii_ioctl(p->phy, ifr, cmd);
-
- return -EOPNOTSUPP;
+ return phy_mii_ioctl(dev->phydev, ifr, cmd);
}
static int dsa_slave_port_attr_set(struct net_device *dev,
@@ -435,12 +433,10 @@ static int
dsa_slave_get_link_ksettings(struct net_device *dev,
struct ethtool_link_ksettings *cmd)
{
- struct dsa_slave_priv *p = netdev_priv(dev);
+ if (!dev->phydev)
+ return -ENODEV;
- if (!p->phy)
- return -EOPNOTSUPP;
-
- phy_ethtool_ksettings_get(p->phy, cmd);
+ phy_ethtool_ksettings_get(dev->phydev, cmd);
return 0;
}
@@ -449,12 +445,10 @@ static int
dsa_slave_set_link_ksettings(struct net_device *dev,
const struct ethtool_link_ksettings *cmd)
{
- struct dsa_slave_priv *p = netdev_priv(dev);
+ if (!dev->phydev)
+ return -ENODEV;
- if (p->phy != NULL)
- return phy_ethtool_ksettings_set(p->phy, cmd);
-
- return -EOPNOTSUPP;
+ return phy_ethtool_ksettings_set(dev->phydev, cmd);
}
static void dsa_slave_get_drvinfo(struct net_device *dev,
@@ -488,24 +482,20 @@ dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p)
static int dsa_slave_nway_reset(struct net_device *dev)
{
- struct dsa_slave_priv *p = netdev_priv(dev);
+ if (!dev->phydev)
+ return -ENODEV;
- if (p->phy != NULL)
- return genphy_restart_aneg(p->phy);
-
- return -EOPNOTSUPP;
+ return genphy_restart_aneg(dev->phydev);
}
static u32 dsa_slave_get_link(struct net_device *dev)
{
- struct dsa_slave_priv *p = netdev_priv(dev);
+ if (!dev->phydev)
+ return -ENODEV;
- if (p->phy != NULL) {
- genphy_update_link(p->phy);
- return p->phy->link;
- }
+ genphy_update_link(dev->phydev);
- return -EOPNOTSUPP;
+ return dev->phydev->link;
}
static int dsa_slave_get_eeprom_len(struct net_device *dev)
@@ -640,7 +630,7 @@ static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e)
int ret;
/* Port's PHY and MAC both need to be EEE capable */
- if (!p->phy)
+ if (!dev->phydev)
return -ENODEV;
if (!ds->ops->set_mac_eee)
@@ -651,12 +641,12 @@ static int dsa_slave_set_eee(struct net_device *dev, struct ethtool_eee *e)
return ret;
if (e->eee_enabled) {
- ret = phy_init_eee(p->phy, 0);
+ ret = phy_init_eee(dev->phydev, 0);
if (ret)
return ret;
}
- return phy_ethtool_set_eee(p->phy, e);
+ return phy_ethtool_set_eee(dev->phydev, e);
}
static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e)
@@ -666,7 +656,7 @@ static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e)
int ret;
/* Port's PHY and MAC both need to be EEE capable */
- if (!p->phy)
+ if (!dev->phydev)
return -ENODEV;
if (!ds->ops->get_mac_eee)
@@ -676,7 +666,7 @@ static int dsa_slave_get_eee(struct net_device *dev, struct ethtool_eee *e)
if (ret)
return ret;
- return phy_ethtool_get_eee(p->phy, e);
+ return phy_ethtool_get_eee(dev->phydev, e);
}
#ifdef CONFIG_NET_POLL_CONTROLLER
@@ -985,26 +975,26 @@ static void dsa_slave_adjust_link(struct net_device *dev)
struct dsa_switch *ds = p->dp->ds;
unsigned int status_changed = 0;
- if (p->old_link != p->phy->link) {
+ if (p->old_link != dev->phydev->link) {
status_changed = 1;
- p->old_link = p->phy->link;
+ p->old_link = dev->phydev->link;
}
- if (p->old_duplex != p->phy->duplex) {
+ if (p->old_duplex != dev->phydev->duplex) {
status_changed = 1;
- p->old_duplex = p->phy->duplex;
+ p->old_duplex = dev->phydev->duplex;
}
- if (p->old_pause != p->phy->pause) {
+ if (p->old_pause != dev->phydev->pause) {
status_changed = 1;
- p->old_pause = p->phy->pause;
+ p->old_pause = dev->phydev->pause;
}
if (ds->ops->adjust_link && status_changed)
- ds->ops->adjust_link(ds, p->dp->index, p->phy);
+ ds->ops->adjust_link(ds, p->dp->index, dev->phydev);
if (status_changed)
- phy_print_status(p->phy);
+ phy_print_status(dev->phydev);
}
static int dsa_slave_fixed_link_update(struct net_device *dev,
@@ -1029,17 +1019,18 @@ static int dsa_slave_phy_connect(struct net_device *slave_dev, int addr)
struct dsa_slave_priv *p = netdev_priv(slave_dev);
struct dsa_switch *ds = p->dp->ds;
- p->phy = mdiobus_get_phy(ds->slave_mii_bus, addr);
- if (!p->phy) {
+ slave_dev->phydev = mdiobus_get_phy(ds->slave_mii_bus, addr);
+ if (!slave_dev->phydev) {
netdev_err(slave_dev, "no phy at %d\n", addr);
return -ENODEV;
}
/* Use already configured phy mode */
if (p->phy_interface == PHY_INTERFACE_MODE_NA)
- p->phy_interface = p->phy->interface;
- return phy_connect_direct(slave_dev, p->phy, dsa_slave_adjust_link,
- p->phy_interface);
+ p->phy_interface = slave_dev->phydev->interface;
+
+ return phy_connect_direct(slave_dev, slave_dev->phydev,
+ dsa_slave_adjust_link, p->phy_interface);
}
static int dsa_slave_phy_setup(struct net_device *slave_dev)
@@ -1091,22 +1082,23 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev)
return ret;
}
} else {
- p->phy = of_phy_connect(slave_dev, phy_dn,
- dsa_slave_adjust_link,
- phy_flags,
- p->phy_interface);
+ slave_dev->phydev = of_phy_connect(slave_dev, phy_dn,
+ dsa_slave_adjust_link,
+ phy_flags,
+ p->phy_interface);
}
of_node_put(phy_dn);
}
- if (p->phy && phy_is_fixed)
- fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update);
+ if (slave_dev->phydev && phy_is_fixed)
+ fixed_phy_set_link_update(slave_dev->phydev,
+ dsa_slave_fixed_link_update);
/* We could not connect to a designated PHY, so use the switch internal
* MDIO bus instead
*/
- if (!p->phy) {
+ if (!slave_dev->phydev) {
ret = dsa_slave_phy_connect(slave_dev, p->dp->index);
if (ret) {
netdev_err(slave_dev, "failed to connect to port %d: %d\n",
@@ -1117,7 +1109,7 @@ static int dsa_slave_phy_setup(struct net_device *slave_dev)
}
}
- phy_attached_info(p->phy);
+ phy_attached_info(slave_dev->phydev);
return 0;
}
@@ -1137,12 +1129,12 @@ int dsa_slave_suspend(struct net_device *slave_dev)
netif_device_detach(slave_dev);
- if (p->phy) {
- phy_stop(p->phy);
+ if (slave_dev->phydev) {
+ phy_stop(slave_dev->phydev);
p->old_pause = -1;
p->old_link = -1;
p->old_duplex = -1;
- phy_suspend(p->phy);
+ phy_suspend(slave_dev->phydev);
}
return 0;
@@ -1150,13 +1142,11 @@ int dsa_slave_suspend(struct net_device *slave_dev)
int dsa_slave_resume(struct net_device *slave_dev)
{
- struct dsa_slave_priv *p = netdev_priv(slave_dev);
-
netif_device_attach(slave_dev);
- if (p->phy) {
- phy_resume(p->phy);
- phy_start(p->phy);
+ if (slave_dev->phydev) {
+ phy_resume(slave_dev->phydev);
+ phy_start(slave_dev->phydev);
}
return 0;
@@ -1249,8 +1239,8 @@ void dsa_slave_destroy(struct net_device *slave_dev)
port_dn = p->dp->dn;
netif_carrier_off(slave_dev);
- if (p->phy) {
- phy_disconnect(p->phy);
+ if (slave_dev->phydev) {
+ phy_disconnect(slave_dev->phydev);
if (of_phy_is_fixed_link(port_dn))
of_phy_deregister_fixed_link(port_dn);
--
2.14.1
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