--- /dev/null
+/**********************************************************************
+ * Author: Cavium Networks
+ *
+ * Contact: support@caviumnetworks.com
+ * This file is part of the OCTEON SDK
+ *
+ * Copyright (c) 2003-2007 Cavium Networks
+ *
+ * This file is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License, Version 2, as
+ * published by the Free Software Foundation.
+ *
+ * This file is distributed in the hope that it will be useful, but
+ * AS-IS and WITHOUT ANY WARRANTY; without even the implied warranty
+ * of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE, TITLE, or
+ * NONINFRINGEMENT. See the GNU General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this file; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ * or visit http://www.gnu.org/licenses/.
+ *
+ * This file may also be available under a different license from Cavium.
+ * Contact Cavium Networks for more information
+**********************************************************************/
+#include <linux/kernel.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include <linux/ratelimit.h>
+#include <linux/of_mdio.h>
+
+#include <net/dst.h>
+
+#include <asm/octeon/octeon.h>
+
+#include "ethernet-defines.h"
+#include "octeon-ethernet.h"
+#include "ethernet-mdio.h"
+#include "ethernet-util.h"
+
+#include <asm/octeon/cvmx-helper-board.h>
+
+#include <asm/octeon/cvmx-smix-defs.h>
+
+static void cvm_oct_get_drvinfo(struct net_device *dev,
+ struct ethtool_drvinfo *info)
+{
+ strlcpy(info->driver, "cavium-ethernet", sizeof(info->driver));
+ strlcpy(info->version, OCTEON_ETHERNET_VERSION, sizeof(info->version));
+ strlcpy(info->bus_info, "Builtin", sizeof(info->bus_info));
+}
+
+static int cvm_oct_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct octeon_ethernet *priv = netdev_priv(dev);
+
+ if (priv->phydev)
+ return phy_ethtool_gset(priv->phydev, cmd);
+
+ return -EINVAL;
+}
+
+static int cvm_oct_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
+{
+ struct octeon_ethernet *priv = netdev_priv(dev);
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ if (priv->phydev)
+ return phy_ethtool_sset(priv->phydev, cmd);
+
+ return -EINVAL;
+}
+
+static int cvm_oct_nway_reset(struct net_device *dev)
+{
+ struct octeon_ethernet *priv = netdev_priv(dev);
+
+ if (!capable(CAP_NET_ADMIN))
+ return -EPERM;
+
+ if (priv->phydev)
+ return phy_start_aneg(priv->phydev);
+
+ return -EINVAL;
+}
+
+const struct ethtool_ops cvm_oct_ethtool_ops = {
+ .get_drvinfo = cvm_oct_get_drvinfo,
+ .get_settings = cvm_oct_get_settings,
+ .set_settings = cvm_oct_set_settings,
+ .nway_reset = cvm_oct_nway_reset,
+ .get_link = ethtool_op_get_link,
+};
+
+/**
+ * cvm_oct_ioctl - IOCTL support for PHY control
+ * @dev: Device to change
+ * @rq: the request
+ * @cmd: the command
+ *
+ * Returns Zero on success
+ */
+int cvm_oct_ioctl(struct net_device *dev, struct ifreq *rq, int cmd)
+{
+ struct octeon_ethernet *priv = netdev_priv(dev);
+
+ if (!netif_running(dev))
+ return -EINVAL;
+
+ if (!priv->phydev)
+ return -EINVAL;
+
+ return phy_mii_ioctl(priv->phydev, rq, cmd);
+}
+
+static void cvm_oct_note_carrier(struct octeon_ethernet *priv,
+ cvmx_helper_link_info_t li)
+{
+ if (li.s.link_up) {
+ pr_notice_ratelimited("%s: %u Mbps %s duplex, port %d\n",
+ netdev_name(priv->netdev), li.s.speed,
+ (li.s.full_duplex) ? "Full" : "Half",
+ priv->port);
+ } else {
+ pr_notice_ratelimited("%s: Link down\n",
+ netdev_name(priv->netdev));
+ }
+}
+
+void cvm_oct_adjust_link(struct net_device *dev)
+{
+ struct octeon_ethernet *priv = netdev_priv(dev);
+ cvmx_helper_link_info_t link_info;
+
+ if (priv->last_link != priv->phydev->link) {
+ priv->last_link = priv->phydev->link;
+ link_info.u64 = 0;
+ link_info.s.link_up = priv->last_link ? 1 : 0;
+ link_info.s.full_duplex = priv->phydev->duplex ? 1 : 0;
+ link_info.s.speed = priv->phydev->speed;
+
+ cvmx_helper_link_set(priv->port, link_info);
+ cvm_oct_note_carrier(priv, link_info);
+ }
+}
+
+int cvm_oct_common_stop(struct net_device *dev)
+{
+ struct octeon_ethernet *priv = netdev_priv(dev);
+ cvmx_helper_link_info_t link_info;
+
+ priv->poll = NULL;
+
+ if (priv->phydev)
+ phy_disconnect(priv->phydev);
+ priv->phydev = NULL;
+
+ if (priv->last_link) {
+ link_info.u64 = 0;
+ priv->last_link = 0;
+
+ cvmx_helper_link_set(priv->port, link_info);
+ cvm_oct_note_carrier(priv, link_info);
+ }
+ return 0;
+}
+
+/**
+ * cvm_oct_phy_setup_device - setup the PHY
+ *
+ * @dev: Device to setup
+ *
+ * Returns Zero on success, negative on failure
+ */
+int cvm_oct_phy_setup_device(struct net_device *dev)
+{
+ struct octeon_ethernet *priv = netdev_priv(dev);
+ struct device_node *phy_node;
+
+ if (!priv->of_node)
+ goto no_phy;
+
+ phy_node = of_parse_phandle(priv->of_node, "phy-handle", 0);
+ if (!phy_node)
+ goto no_phy;
+
+ priv->phydev = of_phy_connect(dev, phy_node, cvm_oct_adjust_link, 0,
+ PHY_INTERFACE_MODE_GMII);
+
+ if (priv->phydev == NULL)
+ return -ENODEV;
+
+ priv->last_link = 0;
+ phy_start_aneg(priv->phydev);
+
+ return 0;
+no_phy:
+ /* If there is no phy, assume a direct MAC connection and that
+ * the link is up.
+ */
+ netif_carrier_on(dev);
+ return 0;
+}
Code Review / kvmfornfv.git / blobdiff