[PATCH 09/14] net: dsa: Add support for switch EEPROM access
From: Guenter Roeck <linux@roeck-us.net>
Date: 2014-10-23 04:08:01
Also in:
lkml
Subsystem:
networking [dsa], networking [general], the rest · Maintainers:
Andrew Lunn, Vladimir Oltean, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
On some chips it is possible to access the switch eeprom. Add infrastructure support for it. Signed-off-by: Guenter Roeck <linux@roeck-us.net> --- include/net/dsa.h | 7 +++++++ net/dsa/slave.c | 38 ++++++++++++++++++++++++++++++++++++++ 2 files changed, 45 insertions(+)
diff --git a/include/net/dsa.h b/include/net/dsa.h
index d8b3057..73146b7 100644
--- a/include/net/dsa.h
+++ b/include/net/dsa.h@@ -248,6 +248,13 @@ struct dsa_switch_driver { int (*get_temp_limit)(struct dsa_switch *ds, int *temp); int (*set_temp_limit)(struct dsa_switch *ds, int temp); int (*get_temp_alarm)(struct dsa_switch *ds, bool *alarm); + + /* EEPROM access */ + int (*get_eeprom_len)(struct dsa_switch *ds); + int (*get_eeprom)(struct dsa_switch *ds, + struct ethtool_eeprom *eeprom, u8 *data); + int (*set_eeprom)(struct dsa_switch *ds, + struct ethtool_eeprom *eeprom, u8 *data); }; void register_switch_driver(struct dsa_switch_driver *type);
diff --git a/net/dsa/slave.c b/net/dsa/slave.c
index 6d18174..a54ee43 100644
--- a/net/dsa/slave.c
+++ b/net/dsa/slave.c@@ -271,6 +271,41 @@ static u32 dsa_slave_get_link(struct net_device *dev) return -EOPNOTSUPP; } +static int dsa_slave_get_eeprom_len(struct net_device *dev) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_switch *ds = p->parent; + + if (ds->drv->get_eeprom_len != NULL) + return ds->drv->get_eeprom_len(ds); + + return 0; +} + +static int dsa_slave_get_eeprom(struct net_device *dev, + struct ethtool_eeprom *eeprom, u8 *data) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_switch *ds = p->parent; + + if (ds->drv->get_eeprom != NULL) + return ds->drv->get_eeprom(ds, eeprom, data); + + return -EOPNOTSUPP; +} + +static int dsa_slave_set_eeprom(struct net_device *dev, + struct ethtool_eeprom *eeprom, u8 *data) +{ + struct dsa_slave_priv *p = netdev_priv(dev); + struct dsa_switch *ds = p->parent; + + if (ds->drv->set_eeprom != NULL) + return ds->drv->set_eeprom(ds, eeprom, data); + + return -EOPNOTSUPP; +} + static void dsa_slave_get_strings(struct net_device *dev, uint32_t stringset, uint8_t *data) {
@@ -387,6 +422,9 @@ static const struct ethtool_ops dsa_slave_ethtool_ops = { .get_drvinfo = dsa_slave_get_drvinfo, .nway_reset = dsa_slave_nway_reset, .get_link = dsa_slave_get_link, + .get_eeprom_len = dsa_slave_get_eeprom_len, + .get_eeprom = dsa_slave_get_eeprom, + .set_eeprom = dsa_slave_set_eeprom, .get_strings = dsa_slave_get_strings, .get_ethtool_stats = dsa_slave_get_ethtool_stats, .get_sset_count = dsa_slave_get_sset_count,
--
1.9.1