Commit e98d69ba authored by Freddy Xin's avatar Freddy Xin Committed by David S. Miller

AX88179_178A: Add ethtool ops for EEE support

Add functions to support ethtool EEE manipulating, and the EEE
is disabled in default setting to enhance the compatibility
with certain switch.
Signed-off-by: default avatarFreddy Xin <freddy@asix.com.tw>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 74e83b23
......@@ -23,6 +23,8 @@
#include <linux/usb.h>
#include <linux/crc32.h>
#include <linux/usb/usbnet.h>
#include <uapi/linux/mdio.h>
#include <linux/mdio.h>
#define AX88179_PHY_ID 0x03
#define AX_EEPROM_LEN 0x100
......@@ -170,8 +172,12 @@
#define GMII_PHY_PAGE_SELECT 0x1f
#define GMII_PHY_PGSEL_EXT 0x0007
#define GMII_PHY_PGSEL_PAGE0 0x0000
#define GMII_PHY_PGSEL_PAGE3 0x0003
#define GMII_PHY_PGSEL_PAGE5 0x0005
struct ax88179_data {
u8 eee_enabled;
u8 eee_active;
u16 rxctl;
u16 reserved;
};
......@@ -373,6 +379,60 @@ static void ax88179_mdio_write(struct net_device *netdev, int phy_id, int loc,
ax88179_write_cmd(dev, AX_ACCESS_PHY, phy_id, (__u16)loc, 2, &res);
}
static inline int ax88179_phy_mmd_indirect(struct usbnet *dev, u16 prtad,
u16 devad)
{
u16 tmp16;
int ret;
tmp16 = devad;
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_MMD_CTRL, 2, &tmp16);
tmp16 = prtad;
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_MMD_DATA, 2, &tmp16);
tmp16 = devad | MII_MMD_CTRL_NOINCR;
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_MMD_CTRL, 2, &tmp16);
return ret;
}
static int
ax88179_phy_read_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad)
{
int ret;
u16 tmp16;
ax88179_phy_mmd_indirect(dev, prtad, devad);
ret = ax88179_read_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_MMD_DATA, 2, &tmp16);
if (ret < 0)
return ret;
return tmp16;
}
static int
ax88179_phy_write_mmd_indirect(struct usbnet *dev, u16 prtad, u16 devad,
u16 data)
{
int ret;
ax88179_phy_mmd_indirect(dev, prtad, devad);
ret = ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_MMD_DATA, 2, &data);
if (ret < 0)
return ret;
return 0;
}
static int ax88179_suspend(struct usb_interface *intf, pm_message_t message)
{
struct usbnet *dev = usb_get_intfdata(intf);
......@@ -572,6 +632,185 @@ static int ax88179_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
return mii_ethtool_sset(&dev->mii, cmd);
}
static int
ax88179_ethtool_get_eee(struct usbnet *dev, struct ethtool_eee *data)
{
int val;
/* Get Supported EEE */
val = ax88179_phy_read_mmd_indirect(dev, MDIO_PCS_EEE_ABLE,
MDIO_MMD_PCS);
if (val < 0)
return val;
data->supported = mmd_eee_cap_to_ethtool_sup_t(val);
/* Get advertisement EEE */
val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_ADV,
MDIO_MMD_AN);
if (val < 0)
return val;
data->advertised = mmd_eee_adv_to_ethtool_adv_t(val);
/* Get LP advertisement EEE */
val = ax88179_phy_read_mmd_indirect(dev, MDIO_AN_EEE_LPABLE,
MDIO_MMD_AN);
if (val < 0)
return val;
data->lp_advertised = mmd_eee_adv_to_ethtool_adv_t(val);
return 0;
}
static int
ax88179_ethtool_set_eee(struct usbnet *dev, struct ethtool_eee *data)
{
u16 tmp16 = ethtool_adv_to_mmd_eee_adv_t(data->advertised);
return ax88179_phy_write_mmd_indirect(dev, MDIO_AN_EEE_ADV,
MDIO_MMD_AN, tmp16);
}
static int ax88179_chk_eee(struct usbnet *dev)
{
struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
struct ax88179_data *priv = (struct ax88179_data *)dev->data;
mii_ethtool_gset(&dev->mii, &ecmd);
if (ecmd.duplex & DUPLEX_FULL) {
int eee_lp, eee_cap, eee_adv;
u32 lp, cap, adv, supported = 0;
eee_cap = ax88179_phy_read_mmd_indirect(dev,
MDIO_PCS_EEE_ABLE,
MDIO_MMD_PCS);
if (eee_cap < 0) {
priv->eee_active = 0;
return false;
}
cap = mmd_eee_cap_to_ethtool_sup_t(eee_cap);
if (!cap) {
priv->eee_active = 0;
return false;
}
eee_lp = ax88179_phy_read_mmd_indirect(dev,
MDIO_AN_EEE_LPABLE,
MDIO_MMD_AN);
if (eee_lp < 0) {
priv->eee_active = 0;
return false;
}
eee_adv = ax88179_phy_read_mmd_indirect(dev,
MDIO_AN_EEE_ADV,
MDIO_MMD_AN);
if (eee_adv < 0) {
priv->eee_active = 0;
return false;
}
adv = mmd_eee_adv_to_ethtool_adv_t(eee_adv);
lp = mmd_eee_adv_to_ethtool_adv_t(eee_lp);
supported = (ecmd.speed == SPEED_1000) ?
SUPPORTED_1000baseT_Full :
SUPPORTED_100baseT_Full;
if (!(lp & adv & supported)) {
priv->eee_active = 0;
return false;
}
priv->eee_active = 1;
return true;
}
priv->eee_active = 0;
return false;
}
static void ax88179_disable_eee(struct usbnet *dev)
{
u16 tmp16;
tmp16 = GMII_PHY_PGSEL_PAGE3;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
GMII_PHY_PAGE_SELECT, 2, &tmp16);
tmp16 = 0x3246;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_PHYADDR, 2, &tmp16);
tmp16 = GMII_PHY_PGSEL_PAGE0;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
GMII_PHY_PAGE_SELECT, 2, &tmp16);
}
static void ax88179_enable_eee(struct usbnet *dev)
{
u16 tmp16;
tmp16 = GMII_PHY_PGSEL_PAGE3;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
GMII_PHY_PAGE_SELECT, 2, &tmp16);
tmp16 = 0x3247;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_PHYADDR, 2, &tmp16);
tmp16 = GMII_PHY_PGSEL_PAGE5;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
GMII_PHY_PAGE_SELECT, 2, &tmp16);
tmp16 = 0x0680;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
MII_BMSR, 2, &tmp16);
tmp16 = GMII_PHY_PGSEL_PAGE0;
ax88179_write_cmd(dev, AX_ACCESS_PHY, AX88179_PHY_ID,
GMII_PHY_PAGE_SELECT, 2, &tmp16);
}
static int ax88179_get_eee(struct net_device *net, struct ethtool_eee *edata)
{
struct usbnet *dev = netdev_priv(net);
struct ax88179_data *priv = (struct ax88179_data *)dev->data;
edata->eee_enabled = priv->eee_enabled;
edata->eee_active = priv->eee_active;
return ax88179_ethtool_get_eee(dev, edata);
}
static int ax88179_set_eee(struct net_device *net, struct ethtool_eee *edata)
{
struct usbnet *dev = netdev_priv(net);
struct ax88179_data *priv = (struct ax88179_data *)dev->data;
int ret = -EOPNOTSUPP;
priv->eee_enabled = edata->eee_enabled;
if (!priv->eee_enabled) {
ax88179_disable_eee(dev);
} else {
priv->eee_enabled = ax88179_chk_eee(dev);
if (!priv->eee_enabled)
return -EOPNOTSUPP;
ax88179_enable_eee(dev);
}
ret = ax88179_ethtool_set_eee(dev, edata);
if (ret)
return ret;
mii_nway_restart(&dev->mii);
usbnet_link_change(dev, 0, 0);
return ret;
}
static int ax88179_ioctl(struct net_device *net, struct ifreq *rq, int cmd)
{
......@@ -589,6 +828,8 @@ static const struct ethtool_ops ax88179_ethtool_ops = {
.get_eeprom = ax88179_get_eeprom,
.get_settings = ax88179_get_settings,
.set_settings = ax88179_set_settings,
.get_eee = ax88179_get_eee,
.set_eee = ax88179_set_eee,
.nway_reset = usbnet_nway_reset,
};
......@@ -980,6 +1221,7 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
u16 *tmp16;
u8 *tmp;
struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
struct ethtool_eee eee_data;
usbnet_get_endpoints(dev, intf);
......@@ -1062,6 +1304,15 @@ static int ax88179_bind(struct usbnet *dev, struct usb_interface *intf)
ax88179_led_setting(dev);
ax179_data->eee_enabled = 0;
ax179_data->eee_active = 0;
ax88179_disable_eee(dev);
ax88179_ethtool_get_eee(dev, &eee_data);
eee_data.advertised = 0;
ax88179_ethtool_set_eee(dev, &eee_data);
/* Restart autoneg */
mii_nway_restart(&dev->mii);
......@@ -1261,6 +1512,8 @@ static int ax88179_link_reset(struct usbnet *dev)
ax88179_write_cmd(dev, AX_ACCESS_MAC, AX_MEDIUM_STATUS_MODE,
2, 2, &mode);
ax179_data->eee_enabled = ax88179_chk_eee(dev);
netif_carrier_on(dev->net);
return 0;
......@@ -1271,6 +1524,8 @@ static int ax88179_reset(struct usbnet *dev)
u8 buf[5];
u16 *tmp16;
u8 *tmp;
struct ax88179_data *ax179_data = (struct ax88179_data *)dev->data;
struct ethtool_eee eee_data;
tmp16 = (u16 *)buf;
tmp = (u8 *)buf;
......@@ -1340,6 +1595,15 @@ static int ax88179_reset(struct usbnet *dev)
ax88179_led_setting(dev);
ax179_data->eee_enabled = 0;
ax179_data->eee_active = 0;
ax88179_disable_eee(dev);
ax88179_ethtool_get_eee(dev, &eee_data);
eee_data.advertised = 0;
ax88179_ethtool_set_eee(dev, &eee_data);
/* Restart autoneg */
mii_nway_restart(&dev->mii);
......
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