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);
-
- 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);
+ /* Doing phy loopback in offline state, phy resuming is
+ * needed to power up the device.
+ */
+ err = phy_resume(phy_dev);
+ if (err)
+ goto out;
+
+ 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);
-
- 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_loopback(phy_dev, false);
+ if (err)
+ goto out;
+
+ err = phy_suspend(phy_dev);
}
- return 0;
+
+out:
+ return err;
}
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) &&
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:
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__,
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])
}
EXPORT_SYMBOL(phy_resume);
+int phy_loopback(struct phy_device *phydev, bool enable)
+{
+ struct phy_driver *phydrv = to_phy_driver(phydev->mdio.dev.driver);
+ int ret = 0;
+
+ mutex_lock(&phydev->lock);
+
+ if (enable && phydev->loopback_enabled) {
+ ret = -EBUSY;
+ goto out;
+ }
+
+ if (!enable && !phydev->loopback_enabled) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ if (phydev->drv && phydrv->set_loopback)
+ ret = phydrv->set_loopback(phydev, enable);
+ else
+ ret = -EOPNOTSUPP;
+
+ if (ret)
+ goto out;
+
+ phydev->loopback_enabled = enable;
+
+out:
+ mutex_unlock(&phydev->lock);
+ return ret;
+}
+EXPORT_SYMBOL(phy_loopback);
+
/* Generic PHY support and helper functions */
/**
}
EXPORT_SYMBOL(genphy_resume);
+int genphy_loopback(struct phy_device *phydev, bool enable)
+{
+ int value;
+
+ value = phy_read(phydev, MII_BMCR);
+ if (value < 0)
+ return value;
+
+ if (enable)
+ value |= BMCR_LOOPBACK;
+ else
+ value &= ~BMCR_LOOPBACK;
+
+ return phy_write(phydev, MII_BMCR, value);
+}
+EXPORT_SYMBOL(genphy_loopback);
+
static int __set_phy_supported(struct phy_device *phydev, u32 max_speed)
{
/* The default values for phydev->supported are provided by the PHY
.read_status = genphy_read_status,
.suspend = genphy_suspend,
.resume = genphy_resume,
+ .set_loopback = genphy_loopback,
};
static int __init phy_init(void)
* has_fixups: Set to true if this phy has fixups/quirks.
* suspended: Set to true if this phy has been suspended successfully.
* sysfs_links: Internal boolean tracking sysfs symbolic links setup/removal.
+ * loopback_enabled: Set true if this phy has been loopbacked successfully.
* state: state of the PHY for management purposes
* dev_flags: Device-specific flags used by the PHY driver.
* link_timeout: The number of timer firings to wait before the
bool has_fixups;
bool suspended;
bool sysfs_links;
+ bool loopback_enabled;
enum phy_state state;
int (*set_tunable)(struct phy_device *dev,
struct ethtool_tunable *tuna,
const void *data);
+ int (*set_loopback)(struct phy_device *dev, bool enable);
};
#define to_phy_driver(d) container_of(to_mdio_common_driver(d), \
struct phy_driver, mdiodrv)
int phy_init_hw(struct phy_device *phydev);
int phy_suspend(struct phy_device *phydev);
int phy_resume(struct phy_device *phydev);
+int phy_loopback(struct phy_device *phydev, bool enable);
struct phy_device *phy_attach(struct net_device *dev, const char *bus_id,
phy_interface_t interface);
struct phy_device *phy_find_first(struct mii_bus *bus);
int genphy_read_status(struct phy_device *phydev);
int genphy_suspend(struct phy_device *phydev);
int genphy_resume(struct phy_device *phydev);
+int genphy_loopback(struct phy_device *phydev, bool enable);
int genphy_soft_reset(struct phy_device *phydev);
static inline int genphy_no_soft_reset(struct phy_device *phydev)
{