#include <linux/fs.h>
#include <linux/platform_device.h>
#include <linux/phy.h>
+#include <linux/phylink.h>
#include <linux/property.h>
#include <linux/of.h>
#include <linux/of_mdio.h>
#include <linux/of_net.h>
#include <linux/pgtable.h>
+#include <linux/rtnetlink.h>
#include <linux/vmalloc.h>
#include <asm/irq.h>
(*fep->ops->set_multicast_list)(dev);
}
+static int fs_eth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+{
+ struct fs_enet_private *fep = netdev_priv(dev);
+
+ return phylink_mii_ioctl(fep->phylink, ifr, cmd);
+}
+
static void skb_align(struct sk_buff *skb, int align)
{
int off = ((unsigned long)skb->data) & (align - 1);
dev->stats.tx_errors++;
- spin_lock_irqsave(&fep->lock, flags);
+ /* In the event a timeout was detected, but the netdev is brought down
+ * shortly after, it no longer makes sense to try to recover from the
+ * timeout. netif_running() will return false when called from the
+ * .ndo_close() callback. Calling the following recovery code while
+ * called from .ndo_close() could deadlock on rtnl.
+ */
+ if (!netif_running(dev))
+ return;
- if (dev->flags & IFF_UP) {
- phy_stop(dev->phydev);
- (*fep->ops->stop)(dev);
- (*fep->ops->restart)(dev);
- }
+ rtnl_lock();
+ phylink_stop(fep->phylink);
+ phylink_start(fep->phylink);
+ rtnl_unlock();
- phy_start(dev->phydev);
+ spin_lock_irqsave(&fep->lock, flags);
wake = fep->tx_free >= MAX_SKB_FRAGS &&
!(CBDR_SC(fep->cur_tx) & BD_ENET_TX_READY);
spin_unlock_irqrestore(&fep->lock, flags);
schedule_work(&fep->timeout_work);
}
-/* generic link-change handler - should be sufficient for most cases */
-static void fs_adjust_link(struct net_device *dev)
+static void fs_mac_link_up(struct phylink_config *config,
+ struct phy_device *phy,
+ unsigned int mode, phy_interface_t interface,
+ int speed, int duplex,
+ bool tx_pause, bool rx_pause)
{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct phy_device *phydev = dev->phydev;
+ struct net_device *ndev = to_net_dev(config->dev);
+ struct fs_enet_private *fep = netdev_priv(ndev);
unsigned long flags;
- int new_state = 0;
-
- if (phydev->link) {
- /* adjust to duplex mode */
- if (phydev->duplex != fep->oldduplex) {
- new_state = 1;
- fep->oldduplex = phydev->duplex;
- }
-
- if (phydev->speed != fep->oldspeed) {
- new_state = 1;
- fep->oldspeed = phydev->speed;
- }
-
- if (!fep->oldlink) {
- new_state = 1;
- fep->oldlink = 1;
- }
-
- if (new_state) {
- spin_lock_irqsave(&fep->lock, flags);
- fep->ops->restart(dev);
- spin_unlock_irqrestore(&fep->lock, flags);
- }
- } else if (fep->oldlink) {
- new_state = 1;
- fep->oldlink = 0;
- fep->oldspeed = 0;
- fep->oldduplex = -1;
- }
- if (new_state && netif_msg_link(fep))
- phy_print_status(phydev);
+ spin_lock_irqsave(&fep->lock, flags);
+ fep->ops->restart(ndev, interface, speed, duplex);
+ spin_unlock_irqrestore(&fep->lock, flags);
}
-static int fs_init_phy(struct net_device *dev)
+static void fs_mac_link_down(struct phylink_config *config,
+ unsigned int mode, phy_interface_t interface)
{
- struct fs_enet_private *fep = netdev_priv(dev);
- struct phy_device *phydev;
- phy_interface_t iface;
-
- fep->oldlink = 0;
- fep->oldspeed = 0;
- fep->oldduplex = -1;
-
- iface = fep->fpi->use_rmii ?
- PHY_INTERFACE_MODE_RMII : PHY_INTERFACE_MODE_MII;
+ struct net_device *ndev = to_net_dev(config->dev);
+ struct fs_enet_private *fep = netdev_priv(ndev);
+ unsigned long flags;
- phydev = of_phy_connect(dev, fep->fpi->phy_node, &fs_adjust_link, 0,
- iface);
- if (!phydev) {
- dev_err(&dev->dev, "Could not attach to PHY\n");
- return -ENODEV;
- }
+ spin_lock_irqsave(&fep->lock, flags);
+ fep->ops->stop(ndev);
+ spin_unlock_irqrestore(&fep->lock, flags);
+}
- return 0;
+static void fs_mac_config(struct phylink_config *config, unsigned int mode,
+ const struct phylink_link_state *state)
+{
+ /* Nothing to do */
}
static int fs_enet_open(struct net_device *dev)
return -EINVAL;
}
- err = fs_init_phy(dev);
+ err = phylink_of_phy_connect(fep->phylink, fep->dev->of_node, 0);
if (err) {
free_irq(fep->interrupt, dev);
napi_disable(&fep->napi);
return err;
}
- phy_start(dev->phydev);
+ phylink_start(fep->phylink);
netif_start_queue(dev);
unsigned long flags;
netif_stop_queue(dev);
- netif_carrier_off(dev);
napi_disable(&fep->napi);
- cancel_work_sync(&fep->timeout_work);
- phy_stop(dev->phydev);
+ cancel_work(&fep->timeout_work);
+ phylink_stop(fep->phylink);
spin_lock_irqsave(&fep->lock, flags);
spin_lock(&fep->tx_lock);
(*fep->ops->stop)(dev);
spin_unlock(&fep->tx_lock);
spin_unlock_irqrestore(&fep->lock, flags);
+ phylink_disconnect_phy(fep->phylink);
/* release any irqs */
- phy_disconnect(dev->phydev);
free_irq(fep->interrupt, dev);
return 0;
return ret;
}
+static int fs_ethtool_set_link_ksettings(struct net_device *dev,
+ const struct ethtool_link_ksettings *cmd)
+{
+ struct fs_enet_private *fep = netdev_priv(dev);
+
+ return phylink_ethtool_ksettings_set(fep->phylink, cmd);
+}
+
+static int fs_ethtool_get_link_ksettings(struct net_device *dev,
+ struct ethtool_link_ksettings *cmd)
+{
+ struct fs_enet_private *fep = netdev_priv(dev);
+
+ return phylink_ethtool_ksettings_get(fep->phylink, cmd);
+}
+
static const struct ethtool_ops fs_ethtool_ops = {
.get_drvinfo = fs_get_drvinfo,
.get_regs_len = fs_get_regs_len,
.set_msglevel = fs_set_msglevel,
.get_regs = fs_get_regs,
.get_ts_info = ethtool_op_get_ts_info,
- .get_link_ksettings = phy_ethtool_get_link_ksettings,
- .set_link_ksettings = phy_ethtool_set_link_ksettings,
+ .get_link_ksettings = fs_ethtool_get_link_ksettings,
+ .set_link_ksettings = fs_ethtool_set_link_ksettings,
.get_tunable = fs_get_tunable,
.set_tunable = fs_set_tunable,
};
.ndo_start_xmit = fs_enet_start_xmit,
.ndo_tx_timeout = fs_timeout,
.ndo_set_rx_mode = fs_set_multicast_list,
- .ndo_eth_ioctl = phy_do_ioctl_running,
+ .ndo_eth_ioctl = fs_eth_ioctl,
.ndo_validate_addr = eth_validate_addr,
.ndo_set_mac_address = eth_mac_addr,
#ifdef CONFIG_NET_POLL_CONTROLLER
#endif
};
+static const struct phylink_mac_ops fs_enet_phylink_mac_ops = {
+ .mac_config = fs_mac_config,
+ .mac_link_down = fs_mac_link_down,
+ .mac_link_up = fs_mac_link_up,
+};
+
static int fs_enet_probe(struct platform_device *ofdev)
{
- int err, privsize, len, ret = -ENODEV;
- const char *phy_connection_type;
+ int privsize, len, ret = -ENODEV;
struct fs_platform_info *fpi;
struct fs_enet_private *fep;
+ phy_interface_t phy_mode;
const struct fs_ops *ops;
struct net_device *ndev;
+ struct phylink *phylink;
const u32 *data;
struct clk *clk;
fpi->cp_command = *data;
}
+ ret = of_get_phy_mode(ofdev->dev.of_node, &phy_mode);
+ if (ret) {
+ /* For compatibility, if the mode isn't specified in DT,
+ * assume MII
+ */
+ phy_mode = PHY_INTERFACE_MODE_MII;
+ }
+
fpi->rx_ring = RX_RING_SIZE;
fpi->tx_ring = TX_RING_SIZE;
fpi->rx_copybreak = 240;
fpi->napi_weight = 17;
- fpi->phy_node = of_parse_phandle(ofdev->dev.of_node, "phy-handle", 0);
- if (!fpi->phy_node && of_phy_is_fixed_link(ofdev->dev.of_node)) {
- err = of_phy_register_fixed_link(ofdev->dev.of_node);
- if (err)
- goto out_free_fpi;
-
- /* In the case of a fixed PHY, the DT node associated
- * to the PHY is the Ethernet MAC DT node.
- */
- fpi->phy_node = of_node_get(ofdev->dev.of_node);
- }
-
- if (of_device_is_compatible(ofdev->dev.of_node, "fsl,mpc5125-fec")) {
- phy_connection_type = of_get_property(ofdev->dev.of_node,
- "phy-connection-type",
- NULL);
- if (phy_connection_type && !strcmp("rmii", phy_connection_type))
- fpi->use_rmii = 1;
- }
/* make clock lookup non-fatal (the driver is shared among platforms),
* but require enable to succeed when a clock was specified/found,
*/
clk = devm_clk_get_enabled(&ofdev->dev, "per");
if (IS_ERR(clk))
- goto out_deregister_fixed_link;
+ goto out_free_fpi;
privsize = sizeof(*fep) +
sizeof(struct sk_buff **) *
ndev = alloc_etherdev(privsize);
if (!ndev) {
ret = -ENOMEM;
- goto out_deregister_fixed_link;
+ goto out_free_fpi;
}
SET_NETDEV_DEV(ndev, &ofdev->dev);
fep->fpi = fpi;
fep->ops = ops;
+ fep->phylink_config.dev = &ndev->dev;
+ fep->phylink_config.type = PHYLINK_NETDEV;
+ fep->phylink_config.mac_capabilities = MAC_10 | MAC_100;
+
+ __set_bit(PHY_INTERFACE_MODE_MII,
+ fep->phylink_config.supported_interfaces);
+
+ if (of_device_is_compatible(ofdev->dev.of_node, "fsl,mpc5125-fec"))
+ __set_bit(PHY_INTERFACE_MODE_RMII,
+ fep->phylink_config.supported_interfaces);
+
+ phylink = phylink_create(&fep->phylink_config, dev_fwnode(fep->dev),
+ phy_mode, &fs_enet_phylink_mac_ops);
+ if (IS_ERR(phylink)) {
+ ret = PTR_ERR(phylink);
+ goto out_free_dev;
+ }
+
+ fep->phylink = phylink;
+
ret = fep->ops->setup_data(ndev);
if (ret)
- goto out_free_dev;
+ goto out_phylink;
fep->rx_skbuff = (struct sk_buff **)&fep[1];
fep->tx_skbuff = fep->rx_skbuff + fpi->rx_ring;
ndev->ethtool_ops = &fs_ethtool_ops;
- netif_carrier_off(ndev);
-
ndev->features |= NETIF_F_SG;
ret = register_netdev(ndev);
fep->ops->free_bd(ndev);
out_cleanup_data:
fep->ops->cleanup_data(ndev);
+out_phylink:
+ phylink_destroy(fep->phylink);
out_free_dev:
free_netdev(ndev);
-out_deregister_fixed_link:
- of_node_put(fpi->phy_node);
- if (of_phy_is_fixed_link(ofdev->dev.of_node))
- of_phy_deregister_fixed_link(ofdev->dev.of_node);
out_free_fpi:
kfree(fpi);
return ret;
fep->ops->free_bd(ndev);
fep->ops->cleanup_data(ndev);
dev_set_drvdata(fep->dev, NULL);
- of_node_put(fep->fpi->phy_node);
- if (of_phy_is_fixed_link(ofdev->dev.of_node))
- of_phy_deregister_fixed_link(ofdev->dev.of_node);
+ phylink_destroy(fep->phylink);
free_netdev(ndev);
}
projects / users / jedix / linux-maple.git / commitdiff