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lan78xx: add ethtool set & get pause functions 

Add ethtool operations of set_pauseram and get_pauseparm.

Signed-off-by: Woojung Huh <woojung.huh@microchip.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Woojung.Huh@microchip.com 2016-02-25 23:33:14 +00:00 committed by David S. Miller
parent e270b2dbd8
commit 349e0c5e22
1 changed files with 77 additions and 3 deletions
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80
drivers/net/usb/lan78xx.c
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@ -36,7 +36,7 @@
#define DRIVER_AUTHOR "WOOJUNG HUH <woojung.huh@microchip.com>"
#define DRIVER_DESC "LAN78XX USB 3.0 Gigabit Ethernet Devices"
#define DRIVER_NAME "lan78xx"
#define DRIVER_VERSION "1.0.2"
#define DRIVER_VERSION "1.0.3"
#define TX_TIMEOUT_JIFFIES (5 * HZ)
#define THROTTLE_JIFFIES (HZ / 8)
@ -281,6 +281,9 @@ struct lan78xx_net {
u32 chipid;
u32 chiprev;
struct mii_bus *mdiobus;
int fc_autoneg;
u8 fc_request_control;
};
/* use ethtool to change the level for any given device */
@ -902,11 +905,15 @@ static int lan78xx_update_flowcontrol(struct lan78xx_net *dev, u8 duplex,
{
u32 flow = 0, fct_flow = 0;
int ret;
u8 cap;
u8 cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
if (dev->fc_autoneg)
cap = mii_resolve_flowctrl_fdx(lcladv, rmtadv);
else
cap = dev->fc_request_control;
if (cap & FLOW_CTRL_TX)
flow = (FLOW_CR_TX_FCEN_ | 0xFFFF);
flow |= (FLOW_CR_TX_FCEN_ | 0xFFFF);
if (cap & FLOW_CTRL_RX)
flow |= FLOW_CR_RX_FCEN_;
@ -1386,6 +1393,62 @@ static int lan78xx_set_settings(struct net_device *net, struct ethtool_cmd *cmd)
return ret;
}
static void lan78xx_get_pause(struct net_device *net,
struct ethtool_pauseparam *pause)
{
struct lan78xx_net *dev = netdev_priv(net);
struct phy_device *phydev = net->phydev;
struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
phy_ethtool_gset(phydev, &ecmd);
pause->autoneg = dev->fc_autoneg;
if (dev->fc_request_control & FLOW_CTRL_TX)
pause->tx_pause = 1;
if (dev->fc_request_control & FLOW_CTRL_RX)
pause->rx_pause = 1;
}
static int lan78xx_set_pause(struct net_device *net,
struct ethtool_pauseparam *pause)
{
struct lan78xx_net *dev = netdev_priv(net);
struct phy_device *phydev = net->phydev;
struct ethtool_cmd ecmd = { .cmd = ETHTOOL_GSET };
int ret;
phy_ethtool_gset(phydev, &ecmd);
if (pause->autoneg && !ecmd.autoneg) {
ret = -EINVAL;
goto exit;
}
dev->fc_request_control = 0;
if (pause->rx_pause)
dev->fc_request_control |= FLOW_CTRL_RX;
if (pause->tx_pause)
dev->fc_request_control |= FLOW_CTRL_TX;
if (ecmd.autoneg) {
u32 mii_adv;
ecmd.advertising &= ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control);
ecmd.advertising |= mii_adv_to_ethtool_adv_t(mii_adv);
phy_ethtool_sset(phydev, &ecmd);
}
dev->fc_autoneg = pause->autoneg;
ret = 0;
exit:
return ret;
}
static const struct ethtool_ops lan78xx_ethtool_ops = {
.get_link = lan78xx_get_link,
.nway_reset = lan78xx_nway_reset,
@ -1404,6 +1467,8 @@ static const struct ethtool_ops lan78xx_ethtool_ops = {
.set_wol = lan78xx_set_wol,
.get_eee = lan78xx_get_eee,
.set_eee = lan78xx_set_eee,
.get_pauseparam = lan78xx_get_pause,
.set_pauseparam = lan78xx_set_pause,
};
static int lan78xx_ioctl(struct net_device *netdev, struct ifreq *rq, int cmd)
@ -1591,6 +1656,7 @@ static void lan78xx_link_status_change(struct net_device *net)
static int lan78xx_phy_init(struct lan78xx_net *dev)
{
int ret;
u32 mii_adv;
struct phy_device *phydev = dev->net->phydev;
phydev = phy_find_first(dev->mdiobus);
@ -1624,8 +1690,16 @@ static int lan78xx_phy_init(struct lan78xx_net *dev)
/* MAC doesn't support 1000T Half */
phydev->supported &= ~SUPPORTED_1000baseT_Half;
/* support both flow controls */
dev->fc_request_control = (FLOW_CTRL_RX | FLOW_CTRL_TX);
phydev->advertising &= ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause);
mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control);
phydev->advertising |= mii_adv_to_ethtool_adv_t(mii_adv);
genphy_config_aneg(phydev);
dev->fc_autoneg = phydev->autoneg;
phy_start(phydev);
netif_dbg(dev, ifup, dev->net, "phy initialised successfully");