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net: hns: Use phy_driver to setup Phy loopback 

Use function set_loopback in phy_driver to setup phy loopback
when doing ethtool self test.

Signed-off-by: Lin Yun Sheng <linyunsheng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
Lin Yun Sheng 2017-06-30 17:44:16 +08:00 committed by David S. Miller
parent f0f9b4ed23
commit 67cd9a997f
2 changed files with 33 additions and 69 deletions
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1
drivers/net/ethernet/hisilicon/hns/hnae.h
View File

@ -360,6 +360,7 @@ enum hnae_loop {
MAC_INTERNALLOOP_MAC = 0,
MAC_INTERNALLOOP_SERDES,
MAC_INTERNALLOOP_PHY,
MAC_LOOP_PHY_NONE,
MAC_LOOP_NONE,
};

101
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c
View File

@ -259,67 +259,27 @@ static const char hns_nic_test_strs[][ETH_GSTRING_LEN] = {
static int hns_nic_config_phy_loopback(struct phy_device *phy_dev, u8 en)
{
#define COPPER_CONTROL_REG 0
#define PHY_POWER_DOWN BIT(11)
#define PHY_LOOP_BACK BIT(14)
u16 val = 0;
if (phy_dev->is_c45) /* c45 branch adding for XGE PHY */
return -ENOTSUPP;
int err;
if (en) {
/* speed : 1000M */
phy_write(phy_dev, HNS_PHY_PAGE_REG, 2);
phy_write(phy_dev, 21, 0x1046);
/* Doing phy loopback in offline state, phy resuming is
* needed to power up the device.
*/
err = phy_resume(phy_dev);
if (err)
goto out;
phy_write(phy_dev, HNS_PHY_PAGE_REG, 0);
/* Force Master */
phy_write(phy_dev, 9, 0x1F00);
/* Soft-reset */
phy_write(phy_dev, 0, 0x9140);
/* If autoneg disabled,two soft-reset operations */
phy_write(phy_dev, 0, 0x9140);
phy_write(phy_dev, HNS_PHY_PAGE_REG, 0xFA);
/* Default is 0x0400 */
phy_write(phy_dev, 1, 0x418);
/* Force 1000M Link, Default is 0x0200 */
phy_write(phy_dev, 7, 0x20C);
/* Powerup Fiber */
phy_write(phy_dev, HNS_PHY_PAGE_REG, 1);
val = phy_read(phy_dev, COPPER_CONTROL_REG);
val &= ~PHY_POWER_DOWN;
phy_write(phy_dev, COPPER_CONTROL_REG, val);
/* Enable Phy Loopback */
phy_write(phy_dev, HNS_PHY_PAGE_REG, 0);
val = phy_read(phy_dev, COPPER_CONTROL_REG);
val |= PHY_LOOP_BACK;
val &= ~PHY_POWER_DOWN;
phy_write(phy_dev, COPPER_CONTROL_REG, val);
err = phy_loopback(phy_dev, true);
} else {
phy_write(phy_dev, HNS_PHY_PAGE_REG, 0xFA);
phy_write(phy_dev, 1, 0x400);
phy_write(phy_dev, 7, 0x200);
err = phy_loopback(phy_dev, false);
if (err)
goto out;
phy_write(phy_dev, HNS_PHY_PAGE_REG, 1);
val = phy_read(phy_dev, COPPER_CONTROL_REG);
val |= PHY_POWER_DOWN;
phy_write(phy_dev, COPPER_CONTROL_REG, val);
phy_write(phy_dev, HNS_PHY_PAGE_REG, 0);
phy_write(phy_dev, 9, 0xF00);
val = phy_read(phy_dev, COPPER_CONTROL_REG);
val &= ~PHY_LOOP_BACK;
val |= PHY_POWER_DOWN;
phy_write(phy_dev, COPPER_CONTROL_REG, val);
err = phy_suspend(phy_dev);
}
return 0;
out:
return err;
}
static int __lb_setup(struct net_device *ndev,
@ -332,10 +292,9 @@ static int __lb_setup(struct net_device *ndev,
switch (loop) {
case MAC_INTERNALLOOP_PHY:
if ((phy_dev) && (!phy_dev->is_c45)) {
ret = hns_nic_config_phy_loopback(phy_dev, 0x1);
ret |= h->dev->ops->set_loopback(h, loop, 0x1);
}
ret = hns_nic_config_phy_loopback(phy_dev, 0x1);
if (!ret)
ret = h->dev->ops->set_loopback(h, loop, 0x1);
break;
case MAC_INTERNALLOOP_MAC:
if ((h->dev->ops->set_loopback) &&
@ -346,17 +305,17 @@ static int __lb_setup(struct net_device *ndev,
if (h->dev->ops->set_loopback)
ret = h->dev->ops->set_loopback(h, loop, 0x1);
break;
case MAC_LOOP_PHY_NONE:
ret = hns_nic_config_phy_loopback(phy_dev, 0x0);
case MAC_LOOP_NONE:
if ((phy_dev) && (!phy_dev->is_c45))
ret |= hns_nic_config_phy_loopback(phy_dev, 0x0);
if (h->dev->ops->set_loopback) {
if (!ret && h->dev->ops->set_loopback) {
if (priv->ae_handle->phy_if != PHY_INTERFACE_MODE_XGMII)
ret |= h->dev->ops->set_loopback(h,
ret = h->dev->ops->set_loopback(h,
MAC_INTERNALLOOP_MAC, 0x0);
ret |= h->dev->ops->set_loopback(h,
MAC_INTERNALLOOP_SERDES, 0x0);
if (!ret)
ret = h->dev->ops->set_loopback(h,
MAC_INTERNALLOOP_SERDES, 0x0);
}
break;
default:
@ -582,13 +541,16 @@ static int __lb_run_test(struct net_device *ndev,
return ret_val;
}
static int __lb_down(struct net_device *ndev)
static int __lb_down(struct net_device *ndev, enum hnae_loop loop)
{
struct hns_nic_priv *priv = netdev_priv(ndev);
struct hnae_handle *h = priv->ae_handle;
int ret;
ret = __lb_setup(ndev, MAC_LOOP_NONE);
if (loop == MAC_INTERNALLOOP_PHY)
ret = __lb_setup(ndev, MAC_LOOP_PHY_NONE);
else
ret = __lb_setup(ndev, MAC_LOOP_NONE);
if (ret)
netdev_err(ndev, "%s: __lb_setup return error(%d)!\n",
__func__,
@ -644,7 +606,8 @@ static void hns_nic_self_test(struct net_device *ndev,
if (!data[test_index]) {
data[test_index] = __lb_run_test(
ndev, (enum hnae_loop)st_param[i][0]);
(void)__lb_down(ndev);
(void)__lb_down(ndev,
(enum hnae_loop)st_param[i][0]);
}
if (data[test_index])