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| author | Guenter Roeck <linux@roeck-us.net> | 2014-10-29 10:45:04 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-10-30 14:54:11 -0400 |
| commit | 3d762a0f0ab9cb4a6b5993db3ce56c92f9f90ab2 (patch) | |
| tree | cf917d9d31b285c559c8cdead7b33fa78e70e265 | |
| parent | 33b43df40a3827365ff80fae79f7c59c107508d3 (diff) | |
| download | op-kernel-dev-3d762a0f0ab9cb4a6b5993db3ce56c92f9f90ab2.zip op-kernel-dev-3d762a0f0ab9cb4a6b5993db3ce56c92f9f90ab2.tar.gz | |
net: dsa: Add support for reading switch registers with ethtool
Add support for reading switch registers with 'ethtool -d'.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/dsa.h | 7 | ||||
| -rw-r--r-- | net/dsa/slave.c | 23 |
2 files changed, 30 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h index 37856a2..ed3c34b 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -268,6 +268,13 @@ struct dsa_switch_driver { struct ethtool_eeprom *eeprom, u8 *data); int (*set_eeprom)(struct dsa_switch *ds, struct ethtool_eeprom *eeprom, u8 *data); + + /* + * Register access. + */ + int (*get_regs_len)(struct dsa_switch *ds, int port); + void (*get_regs)(struct dsa_switch *ds, int port, + struct ethtool_regs *regs, void *p); }; void register_switch_driver(struct dsa_switch_driver *type); diff --git a/net/dsa/slave.c b/net/dsa/slave.c index ff2fbe7..474f296 100644 --- a/net/dsa/slave.c +++ b/net/dsa/slave.c @@ -249,6 +249,27 @@ static void dsa_slave_get_drvinfo(struct net_device *dev, strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info)); } +static int dsa_slave_get_regs_len(struct net_device *dev) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_switch *ds = p->parent; + + if (ds->drv->get_regs_len) + return ds->drv->get_regs_len(ds, p->port); + + return -EOPNOTSUPP; +} + +static void +dsa_slave_get_regs(struct net_device *dev, struct ethtool_regs *regs, void *_p) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_switch *ds = p->parent; + + if (ds->drv->get_regs) + ds->drv->get_regs(ds, p->port, regs, _p); +} + static int dsa_slave_nway_reset(struct net_device *dev) { struct dsa_slave_priv *p = netdev_priv(dev); @@ -423,6 +444,8 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = { .get_settings = dsa_slave_get_settings, .set_settings = dsa_slave_set_settings, .get_drvinfo = dsa_slave_get_drvinfo, + .get_regs_len = dsa_slave_get_regs_len, + .get_regs = dsa_slave_get_regs, .nway_reset = dsa_slave_nway_reset, .get_link = dsa_slave_get_link, .get_eeprom_len = dsa_slave_get_eeprom_len, |
