xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

smsc95xx: Add mdix control via ethtool

Browse Source 
Add mdix control through ethtool.

Signed-off-by: Woojung Huh <Woojung.huh@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Woojung Huh
2016-09-02 20:34:22 +00:00
committed by David S. Miller
parent 273bf288f9
commit 13722bbe97
1 changed files with 106 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

109
drivers/net/usb/smsc95xx.c
View File

@@ -33,7 +33,7 @@
#include "smsc95xx.h" #include "smsc95xx.h"
#define SMSC_CHIPNAME "smsc95xx" #define SMSC_CHIPNAME "smsc95xx"
#define SMSC_DRIVER_VERSION "1.0.4" #define SMSC_DRIVER_VERSION "1.0.5"
#define HS_USB_PKT_SIZE (512) #define HS_USB_PKT_SIZE (512)
#define FS_USB_PKT_SIZE (64) #define FS_USB_PKT_SIZE (64)
#define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE) #define DEFAULT_HS_BURST_CAP_SIZE (16 * 1024 + 5 * HS_USB_PKT_SIZE)
@@ -64,6 +64,7 @@
#define CARRIER_CHECK_DELAY (2 * HZ) #define CARRIER_CHECK_DELAY (2 * HZ)
struct smsc95xx_priv { struct smsc95xx_priv {
u32 chip_id;
u32 mac_cr; u32 mac_cr;
u32 hash_hi; u32 hash_hi;
u32 hash_lo; u32 hash_lo;
@@ -71,6 +72,7 @@ struct smsc95xx_priv {
spinlock_t mac_cr_lock; spinlock_t mac_cr_lock;
u8 features; u8 features;
u8 suspend_flags; u8 suspend_flags;
u8 mdix_ctrl;
bool link_ok; bool link_ok;
struct delayed_work carrier_check; struct delayed_work carrier_check;
struct usbnet *dev; struct usbnet *dev;
@@ -782,14 +784,113 @@ static int smsc95xx_ethtool_set_wol(struct net_device *net,
return ret; return ret;
} }
static int get_mdix_status(struct net_device *net)
{
struct usbnet *dev = netdev_priv(net);
u32 val;
int buf;
buf = smsc95xx_mdio_read(dev->net, dev->mii.phy_id, SPECIAL_CTRL_STS);
if (buf & SPECIAL_CTRL_STS_OVRRD_AMDIX_) {
if (buf & SPECIAL_CTRL_STS_AMDIX_ENABLE_)
return ETH_TP_MDI_AUTO;
else if (buf & SPECIAL_CTRL_STS_AMDIX_STATE_)
return ETH_TP_MDI_X;
} else {
buf = smsc95xx_read_reg(dev, STRAP_STATUS, &val);
if (val & STRAP_STATUS_AMDIX_EN_)
return ETH_TP_MDI_AUTO;
}
return ETH_TP_MDI;
}
static void set_mdix_status(struct net_device *net, __u8 mdix_ctrl)
{
struct usbnet *dev = netdev_priv(net);
struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
int buf;
if ((pdata->chip_id == ID_REV_CHIP_ID_9500A_) ||
(pdata->chip_id == ID_REV_CHIP_ID_9530_) ||
(pdata->chip_id == ID_REV_CHIP_ID_89530_) ||
(pdata->chip_id == ID_REV_CHIP_ID_9730_)) {
/* Extend Manual AutoMDIX timer for 9500A/9500Ai */
buf = smsc95xx_mdio_read(dev->net, dev->mii.phy_id,
PHY_EDPD_CONFIG);
buf |= PHY_EDPD_CONFIG_EXT_CROSSOVER_;
smsc95xx_mdio_write(dev->net, dev->mii.phy_id,
PHY_EDPD_CONFIG, buf);
}
if (mdix_ctrl == ETH_TP_MDI) {
buf = smsc95xx_mdio_read(dev->net, dev->mii.phy_id,
SPECIAL_CTRL_STS);
buf |= SPECIAL_CTRL_STS_OVRRD_AMDIX_;
buf &= ~(SPECIAL_CTRL_STS_AMDIX_ENABLE_ |
SPECIAL_CTRL_STS_AMDIX_STATE_);
smsc95xx_mdio_write(dev->net, dev->mii.phy_id,
SPECIAL_CTRL_STS, buf);
} else if (mdix_ctrl == ETH_TP_MDI_X) {
buf = smsc95xx_mdio_read(dev->net, dev->mii.phy_id,
SPECIAL_CTRL_STS);
buf |= SPECIAL_CTRL_STS_OVRRD_AMDIX_;
buf &= ~(SPECIAL_CTRL_STS_AMDIX_ENABLE_ |
SPECIAL_CTRL_STS_AMDIX_STATE_);
buf |= SPECIAL_CTRL_STS_AMDIX_STATE_;
smsc95xx_mdio_write(dev->net, dev->mii.phy_id,
SPECIAL_CTRL_STS, buf);
} else if (mdix_ctrl == ETH_TP_MDI_AUTO) {
buf = smsc95xx_mdio_read(dev->net, dev->mii.phy_id,
SPECIAL_CTRL_STS);
buf &= ~SPECIAL_CTRL_STS_OVRRD_AMDIX_;
buf &= ~(SPECIAL_CTRL_STS_AMDIX_ENABLE_ |
SPECIAL_CTRL_STS_AMDIX_STATE_);
buf |= SPECIAL_CTRL_STS_AMDIX_ENABLE_;
smsc95xx_mdio_write(dev->net, dev->mii.phy_id,
SPECIAL_CTRL_STS, buf);
}
pdata->mdix_ctrl = mdix_ctrl;
}
static int smsc95xx_get_settings(struct net_device *net,
struct ethtool_cmd *cmd)
{
struct usbnet *dev = netdev_priv(net);
struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
int retval;
retval = usbnet_get_settings(net, cmd);
cmd->eth_tp_mdix = pdata->mdix_ctrl;
cmd->eth_tp_mdix_ctrl = pdata->mdix_ctrl;
return retval;
}
static int smsc95xx_set_settings(struct net_device *net,
struct ethtool_cmd *cmd)
{
struct usbnet *dev = netdev_priv(net);
struct smsc95xx_priv *pdata = (struct smsc95xx_priv *)(dev->data[0]);
int retval;
if (pdata->mdix_ctrl != cmd->eth_tp_mdix_ctrl)
set_mdix_status(net, cmd->eth_tp_mdix_ctrl);
retval = usbnet_set_settings(net, cmd);
return retval;
}
static const struct ethtool_ops smsc95xx_ethtool_ops = { static const struct ethtool_ops smsc95xx_ethtool_ops = {
.get_link = usbnet_get_link, .get_link = usbnet_get_link,
.nway_reset = usbnet_nway_reset, .nway_reset = usbnet_nway_reset,
.get_drvinfo = usbnet_get_drvinfo, .get_drvinfo = usbnet_get_drvinfo,
.get_msglevel = usbnet_get_msglevel, .get_msglevel = usbnet_get_msglevel,
.set_msglevel = usbnet_set_msglevel, .set_msglevel = usbnet_set_msglevel,
.get_settings = usbnet_get_settings, .get_settings = smsc95xx_get_settings,
.set_settings = usbnet_set_settings, .set_settings = smsc95xx_set_settings,
.get_eeprom_len = smsc95xx_ethtool_get_eeprom_len, .get_eeprom_len = smsc95xx_ethtool_get_eeprom_len,
.get_eeprom = smsc95xx_ethtool_get_eeprom, .get_eeprom = smsc95xx_ethtool_get_eeprom,
.set_eeprom = smsc95xx_ethtool_set_eeprom, .set_eeprom = smsc95xx_ethtool_set_eeprom,
@@ -1194,6 +1295,8 @@ static int smsc95xx_bind(struct usbnet *dev, struct usb_interface *intf)
if (ret < 0) if (ret < 0)
return ret; return ret;
val >>= 16; val >>= 16;
pdata->chip_id = val;
pdata->mdix_ctrl = get_mdix_status(dev->net);
if ((val == ID_REV_CHIP_ID_9500A_) || (val == ID_REV_CHIP_ID_9530_) || if ((val == ID_REV_CHIP_ID_9500A_) || (val == ID_REV_CHIP_ID_9530_) ||
(val == ID_REV_CHIP_ID_89530_) || (val == ID_REV_CHIP_ID_9730_)) (val == ID_REV_CHIP_ID_89530_) || (val == ID_REV_CHIP_ID_9730_))