smsc9420: add ethtool register dump support
This patch adds support for SMSC's LAN9420 PCI ethernet controller
to ethtool's dump registers (-d) command.
This patch is for use with an accompanying ethtool patch, which decodes
the register dump.
Signed-off-by: Steve Glendinning <steve.glendinning@smsc.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/smsc9420.c b/drivers/net/smsc9420.c
index 2a8e9b7..bc9879d 100644
--- a/drivers/net/smsc9420.c
+++ b/drivers/net/smsc9420.c
@@ -293,6 +293,29 @@
return phy_start_aneg(pd->phy_dev);
}
+static int smsc9420_ethtool_getregslen(struct net_device *dev)
+{
+ /* all smsc9420 registers plus all phy registers */
+ return 0x100 + (32 * sizeof(u32));
+}
+
+static void
+smsc9420_ethtool_getregs(struct net_device *dev, struct ethtool_regs *regs,
+ void *buf)
+{
+ struct smsc9420_pdata *pd = netdev_priv(dev);
+ struct phy_device *phy_dev = pd->phy_dev;
+ unsigned int i, j = 0;
+ u32 *data = buf;
+
+ regs->version = smsc9420_reg_read(pd, ID_REV);
+ for (i = 0; i < 0x100; i += (sizeof(u32)))
+ data[j++] = smsc9420_reg_read(pd, i);
+
+ for (i = 0; i <= 31; i++)
+ data[j++] = smsc9420_mii_read(phy_dev->bus, phy_dev->addr, i);
+}
+
static void smsc9420_eeprom_enable_access(struct smsc9420_pdata *pd)
{
unsigned int temp = smsc9420_reg_read(pd, GPIO_CFG);
@@ -422,6 +445,8 @@
.get_eeprom_len = smsc9420_ethtool_get_eeprom_len,
.get_eeprom = smsc9420_ethtool_get_eeprom,
.set_eeprom = smsc9420_ethtool_set_eeprom,
+ .get_regs_len = smsc9420_ethtool_getregslen,
+ .get_regs = smsc9420_ethtool_getregs,
};
/* Sets the device MAC address to dev_addr */