[PATCH 09/14] net: dsa: Add support for switch EEPROM access

2014-10-22 Thread Guenter Roeck
On some chips it is possible to access the switch eeprom.
Add infrastructure support for it.

Signed-off-by: Guenter Roeck 
---
 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

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[PATCH 09/14] net: dsa: Add support for switch EEPROM access

2014-10-22 Thread Guenter Roeck
On some chips it is possible to access the switch eeprom.
Add infrastructure support for it.

Signed-off-by: Guenter Roeck li...@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

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Please read the FAQ at  http://www.tux.org/lkml/