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net: dsa: allow updating fixed PHY link information

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Allow switch drivers to hook a PHY link update callback to perform
port-specific link work.

Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Florian Fainelli 2014-08-27 17:04:54 -07:00 committed by David S. Miller
parent ec9436baed
commit ce31b31c68
2 changed files with 20 additions and 0 deletions
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3
include/net/dsa.h
View File

@ -17,6 +17,7 @@
#include <linux/workqueue.h>
#include <linux/of.h>
#include <linux/phy.h>
#include <linux/phy_fixed.h>
#define DSA_MAX_SWITCHES 4
#define DSA_MAX_PORTS 12
@ -187,6 +188,8 @@ struct dsa_switch_driver {
*/
void (*adjust_link)(struct dsa_switch *ds, int port,
struct phy_device *phydev);
void (*fixed_link_update)(struct dsa_switch *ds, int port,
struct fixed_phy_status *st);
/*
* ethtool hardware statistics.

17
net/dsa/slave.c
View File

@ -358,6 +358,18 @@ static void dsa_slave_adjust_link(struct net_device *dev)
phy_print_status(p->phy);
}
static int dsa_slave_fixed_link_update(struct net_device *dev,
struct fixed_phy_status *status)
{
struct dsa_slave_priv *p = netdev_priv(dev);
struct dsa_switch *ds = p->parent;
if (ds->drv->fixed_link_update)
ds->drv->fixed_link_update(ds, p->port, status);
return 0;
}
/* slave device setup *******************************************************/
static void dsa_slave_phy_setup(struct dsa_slave_priv *p,
struct net_device *slave_dev)
@ -365,6 +377,7 @@ static void dsa_slave_phy_setup(struct dsa_slave_priv *p,
struct dsa_switch *ds = p->parent;
struct dsa_chip_data *cd = ds->pd;
struct device_node *phy_dn, *port_dn;
bool phy_is_fixed = false;
int ret;
port_dn = cd->port_dn[p->port];
@ -380,6 +393,7 @@ static void dsa_slave_phy_setup(struct dsa_slave_priv *p,
pr_err("failed to register fixed PHY\n");
return;
}
phy_is_fixed = true;
phy_dn = port_dn;
}
@ -388,6 +402,9 @@ static void dsa_slave_phy_setup(struct dsa_slave_priv *p,
dsa_slave_adjust_link, 0,
p->phy_interface);
if (p->phy && phy_is_fixed)
fixed_phy_set_link_update(p->phy, dsa_slave_fixed_link_update);
/* We could not connect to a designated PHY, so use the switch internal
* MDIO bus instead
*/