[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / dsa / slave.c

/*
 * net/dsa/slave.c - Slave device handling
 * Copyright (c) 2008-2009 Marvell Semiconductor
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 */

#include <linux/list.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/phy.h>
#include "dsa_priv.h"

/* slave mii_bus handling ***************************************************/
static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg)
{
	struct dsa_switch *ds = bus->priv;

	if (ds->phys_port_mask & (1 << addr))
		return ds->drv->phy_read(ds, addr, reg);

	return 0xffff;
}

static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val)
{
	struct dsa_switch *ds = bus->priv;

	if (ds->phys_port_mask & (1 << addr))
		return ds->drv->phy_write(ds, addr, reg, val);

	return 0;
}

void dsa_slave_mii_bus_init(struct dsa_switch *ds)
{
	ds->slave_mii_bus->priv = (void *)ds;
	ds->slave_mii_bus->name = "dsa slave smi";
	ds->slave_mii_bus->read = dsa_slave_phy_read;
	ds->slave_mii_bus->write = dsa_slave_phy_write;
	snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d:%.2x",
			ds->index, ds->pd->sw_addr);
	ds->slave_mii_bus->parent = &ds->master_mii_bus->dev;
}


/* slave device handling ****************************************************/
static int dsa_slave_init(struct net_device *dev)
{
	struct dsa_slave_priv *p = netdev_priv(dev);

	dev->iflink = p->parent->dst->master_netdev->ifindex;

	return 0;
}

static int dsa_slave_open(struct net_device *dev)
{
	struct dsa_slave_priv *p = netdev_priv(dev);
	struct net_device *master = p->parent->dst->master_netdev;
	int err;

	if (!(master->flags & IFF_UP))
		return -ENETDOWN;

	if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) {
		err = dev_uc_add(master, dev->dev_addr);
		if (err < 0)
			goto out;
	}

	if (dev->flags & IFF_ALLMULTI) {
		err = dev_set_allmulti(master, 1);
		if (err < 0)
			goto del_unicast;
	}
	if (dev->flags & IFF_PROMISC) {
		err = dev_set_promiscuity(master, 1);
		if (err < 0)
			goto clear_allmulti;
	}

	return 0;

clear_allmulti:
	if (dev->flags & IFF_ALLMULTI)
		dev_set_allmulti(master, -1);
del_unicast:
	if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
		dev_uc_del(master, dev->dev_addr);
out:
	return err;
}

static int dsa_slave_close(struct net_device *dev)
{
	struct dsa_slave_priv *p = netdev_priv(dev);
	struct net_device *master = p->parent->dst->master_netdev;

	dev_mc_unsync(master, dev);
	dev_uc_unsync(master, dev);
	if (dev->flags & IFF_ALLMULTI)
		dev_set_allmulti(master, -1);
	if (dev->flags & IFF_PROMISC)
		dev_set_promiscuity(master, -1);

	if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
		dev_uc_del(master, dev->dev_addr);

	return 0;
}

static void dsa_slave_change_rx_flags(struct net_device *dev, int change)
{
	struct dsa_slave_priv *p = netdev_priv(dev);
	struct net_device *master = p->parent->dst->master_netdev;

	if (change & IFF_ALLMULTI)
		dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1);
	if (change & IFF_PROMISC)
		dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1);
}

static void dsa_slave_set_rx_mode(struct net_device *dev)
{
	struct dsa_slave_priv *p = netdev_priv(dev);
	struct net_device *master = p->parent->dst->master_netdev;

	dev_mc_sync(master, dev);
	dev_uc_sync(master, dev);
}

static int dsa_slave_set_mac_address(struct net_device *dev, void *a)
{
	struct dsa_slave_priv *p = netdev_priv(dev);
	struct net_device *master = p->parent->dst->master_netdev;
	struct sockaddr *addr = a;
	int err;

	if (!is_valid_ether_addr(addr->sa_data))
		return -EADDRNOTAVAIL;

	if (!(dev->flags & IFF_UP))
		goto out;

	if (!ether_addr_equal(addr->sa_data, master->dev_addr)) {
		err = dev_uc_add(master, addr->sa_data);
		if (err < 0)
			return err;
	}

	if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
		dev_uc_del(master, dev->dev_addr);

out:
	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);

	return 0;
}

static int dsa_slave_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
{
	struct dsa_slave_priv *p = netdev_priv(dev);

	if (p->phy != NULL)
		return phy_mii_ioctl(p->phy, ifr, cmd);

	return -EOPNOTSUPP;
}


/* ethtool operations *******************************************************/
static int
dsa_slave_get_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
	struct dsa_slave_priv *p = netdev_priv(dev);
	int err;

	err = -EOPNOTSUPP;
	if (p->phy != NULL) {
		err = phy_read_status(p->phy);
		if (err == 0)
			err = phy_ethtool_gset(p->phy, cmd);
	}

	return err;
}

static int
dsa_slave_set_settings(struct net_device *dev, struct ethtool_cmd *cmd)
{
	struct dsa_slave_priv *p = netdev_priv(dev);

	if (p->phy != NULL)
		return phy_ethtool_sset(p->phy, cmd);

	return -EOPNOTSUPP;
}

static void dsa_slave_get_drvinfo(struct net_device *dev,
				  struct ethtool_drvinfo *drvinfo)
{
	strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver));
	strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version));
	strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
	strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info));
}

static int dsa_slave_nway_reset(struct net_device *dev)
{
	struct dsa_slave_priv *p = netdev_priv(dev);

	if (p->phy != NULL)
		return genphy_restart_aneg(p->phy);

	return -EOPNOTSUPP;
}

static u32 dsa_slave_get_link(struct net_device *dev)
{
	struct dsa_slave_priv *p = netdev_priv(dev);

	if (p->phy != NULL) {
		genphy_update_link(p->phy);
		return p->phy->link;
	}

	return -EOPNOTSUPP;
}

static void dsa_slave_get_strings(struct net_device *dev,
				  uint32_t stringset, uint8_t *data)
{
	struct dsa_slave_priv *p = netdev_priv(dev);
	struct dsa_switch *ds = p->parent;

	if (stringset == ETH_SS_STATS) {
		int len = ETH_GSTRING_LEN;

		strncpy(data, "tx_packets", len);
		strncpy(data + len, "tx_bytes", len);
		strncpy(data + 2 * len, "rx_packets", len);
		strncpy(data + 3 * len, "rx_bytes", len);
		if (ds->drv->get_strings != NULL)
			ds->drv->get_strings(ds, p->port, data + 4 * len);
	}
}

static void dsa_slave_get_ethtool_stats(struct net_device *dev,
					struct ethtool_stats *stats,
					uint64_t *data)
{
	struct dsa_slave_priv *p = netdev_priv(dev);
	struct dsa_switch *ds = p->parent;

	data[0] = p->dev->stats.tx_packets;
	data[1] = p->dev->stats.tx_bytes;
	data[2] = p->dev->stats.rx_packets;
	data[3] = p->dev->stats.rx_bytes;
	if (ds->drv->get_ethtool_stats != NULL)
		ds->drv->get_ethtool_stats(ds, p->port, data + 4);
}

static int dsa_slave_get_sset_count(struct net_device *dev, int sset)
{
	struct dsa_slave_priv *p = netdev_priv(dev);
	struct dsa_switch *ds = p->parent;

	if (sset == ETH_SS_STATS) {
		int count;

		count = 4;
		if (ds->drv->get_sset_count != NULL)
			count += ds->drv->get_sset_count(ds);

		return count;
	}

	return -EOPNOTSUPP;
}

static const struct ethtool_ops dsa_slave_ethtool_ops = {
	.get_settings		= dsa_slave_get_settings,
	.set_settings		= dsa_slave_set_settings,
	.get_drvinfo		= dsa_slave_get_drvinfo,
	.nway_reset		= dsa_slave_nway_reset,
	.get_link		= dsa_slave_get_link,
	.get_strings		= dsa_slave_get_strings,
	.get_ethtool_stats	= dsa_slave_get_ethtool_stats,
	.get_sset_count		= dsa_slave_get_sset_count,
};

#ifdef CONFIG_NET_DSA_TAG_DSA
static const struct net_device_ops dsa_netdev_ops = {
	.ndo_init		= dsa_slave_init,
	.ndo_open	 	= dsa_slave_open,
	.ndo_stop		= dsa_slave_close,
	.ndo_start_xmit		= dsa_xmit,
	.ndo_change_rx_flags	= dsa_slave_change_rx_flags,
	.ndo_set_rx_mode	= dsa_slave_set_rx_mode,
	.ndo_set_mac_address	= dsa_slave_set_mac_address,
	.ndo_do_ioctl		= dsa_slave_ioctl,
};
#endif
#ifdef CONFIG_NET_DSA_TAG_EDSA
static const struct net_device_ops edsa_netdev_ops = {
	.ndo_init		= dsa_slave_init,
	.ndo_open	 	= dsa_slave_open,
	.ndo_stop		= dsa_slave_close,
	.ndo_start_xmit		= edsa_xmit,
	.ndo_change_rx_flags	= dsa_slave_change_rx_flags,
	.ndo_set_rx_mode	= dsa_slave_set_rx_mode,
	.ndo_set_mac_address	= dsa_slave_set_mac_address,
	.ndo_do_ioctl		= dsa_slave_ioctl,
};
#endif
#ifdef CONFIG_NET_DSA_TAG_TRAILER
static const struct net_device_ops trailer_netdev_ops = {
	.ndo_init		= dsa_slave_init,
	.ndo_open	 	= dsa_slave_open,
	.ndo_stop		= dsa_slave_close,
	.ndo_start_xmit		= trailer_xmit,
	.ndo_change_rx_flags	= dsa_slave_change_rx_flags,
	.ndo_set_rx_mode	= dsa_slave_set_rx_mode,
	.ndo_set_mac_address	= dsa_slave_set_mac_address,
	.ndo_do_ioctl		= dsa_slave_ioctl,
};
#endif

/* slave device setup *******************************************************/
struct net_device *
dsa_slave_create(struct dsa_switch *ds, struct device *parent,
		 int port, char *name)
{
	struct net_device *master = ds->dst->master_netdev;
	struct net_device *slave_dev;
	struct dsa_slave_priv *p;
	int ret;

	slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv),
				 name, ether_setup);
	if (slave_dev == NULL)
		return slave_dev;

	slave_dev->features = master->vlan_features;
	SET_ETHTOOL_OPS(slave_dev, &dsa_slave_ethtool_ops);
	memcpy(slave_dev->dev_addr, master->dev_addr, ETH_ALEN);
	slave_dev->tx_queue_len = 0;

	switch (ds->dst->tag_protocol) {
#ifdef CONFIG_NET_DSA_TAG_DSA
	case htons(ETH_P_DSA):
		slave_dev->netdev_ops = &dsa_netdev_ops;
		break;
#endif
#ifdef CONFIG_NET_DSA_TAG_EDSA
	case htons(ETH_P_EDSA):
		slave_dev->netdev_ops = &edsa_netdev_ops;
		break;
#endif
#ifdef CONFIG_NET_DSA_TAG_TRAILER
	case htons(ETH_P_TRAILER):
		slave_dev->netdev_ops = &trailer_netdev_ops;
		break;
#endif
	default:
		BUG();
	}

	SET_NETDEV_DEV(slave_dev, parent);
	slave_dev->vlan_features = master->vlan_features;

	p = netdev_priv(slave_dev);
	p->dev = slave_dev;
	p->parent = ds;
	p->port = port;
	p->phy = ds->slave_mii_bus->phy_map[port];

	ret = register_netdev(slave_dev);
	if (ret) {
		printk(KERN_ERR "%s: error %d registering interface %s\n",
				master->name, ret, slave_dev->name);
		free_netdev(slave_dev);
		return NULL;
	}

	netif_carrier_off(slave_dev);

	if (p->phy != NULL) {
		phy_attach(slave_dev, dev_name(&p->phy->dev),
			   PHY_INTERFACE_MODE_GMII);

		p->phy->autoneg = AUTONEG_ENABLE;
		p->phy->speed = 0;
		p->phy->duplex = 0;
		p->phy->advertising = p->phy->supported | ADVERTISED_Autoneg;
		phy_start_aneg(p->phy);
	}

	return slave_dev;
}
Commit	Line	Data
91da11f8 LB	1	/*
91da11f8 LB	2	* net/dsa/slave.c - Slave device handling
e84665c9	3	* Copyright (c) 2008-2009 Marvell Semiconductor
91da11f8 LB	4	*
	5	* This program is free software; you can redistribute it and/or modify
	6	* it under the terms of the GNU General Public License as published by
	7	* the Free Software Foundation; either version 2 of the License, or
	8	* (at your option) any later version.
	9	*/
	10
	11	#include <linux/list.h>
	12	#include <linux/netdevice.h>
df02c6ff	13	#include <linux/etherdevice.h>
91da11f8 LB	14	#include <linux/phy.h>
	15	#include "dsa_priv.h"
	16
	17	/* slave mii_bus handling ***************************************************/
	18	static int dsa_slave_phy_read(struct mii_bus *bus, int addr, int reg)
	19	{
	20	struct dsa_switch *ds = bus->priv;
	21
e84665c9	22	if (ds->phys_port_mask & (1 << addr))
91da11f8 LB	23	return ds->drv->phy_read(ds, addr, reg);
	24
	25	return 0xffff;
	26	}
	27
	28	static int dsa_slave_phy_write(struct mii_bus *bus, int addr, int reg, u16 val)
	29	{
	30	struct dsa_switch *ds = bus->priv;
	31
e84665c9	32	if (ds->phys_port_mask & (1 << addr))
91da11f8 LB	33	return ds->drv->phy_write(ds, addr, reg, val);
	34
	35	return 0;
	36	}
	37
	38	void dsa_slave_mii_bus_init(struct dsa_switch *ds)
	39	{
	40	ds->slave_mii_bus->priv = (void *)ds;
	41	ds->slave_mii_bus->name = "dsa slave smi";
	42	ds->slave_mii_bus->read = dsa_slave_phy_read;
	43	ds->slave_mii_bus->write = dsa_slave_phy_write;
f490be04 FF	44	snprintf(ds->slave_mii_bus->id, MII_BUS_ID_SIZE, "dsa-%d:%.2x",
f490be04 FF	45	ds->index, ds->pd->sw_addr);
e84665c9	46	ds->slave_mii_bus->parent = &ds->master_mii_bus->dev;
91da11f8 LB	47	}
	48
	49
	50	/* slave device handling ****************************************************/
c0840801 LB	51	static int dsa_slave_init(struct net_device *dev)
	52	{
	53	struct dsa_slave_priv *p = netdev_priv(dev);
c0840801	54
e84665c9	55	dev->iflink = p->parent->dst->master_netdev->ifindex;
c0840801 LB	56
	57	return 0;
	58	}
	59
91da11f8 LB	60	static int dsa_slave_open(struct net_device *dev)
91da11f8 LB	61	{
df02c6ff	62	struct dsa_slave_priv *p = netdev_priv(dev);
e84665c9	63	struct net_device *master = p->parent->dst->master_netdev;
df02c6ff LB	64	int err;
	65
	66	if (!(master->flags & IFF_UP))
	67	return -ENETDOWN;
	68
8feedbb4	69	if (!ether_addr_equal(dev->dev_addr, master->dev_addr)) {
a748ee24	70	err = dev_uc_add(master, dev->dev_addr);
df02c6ff LB	71	if (err < 0)
	72	goto out;
	73	}
	74
	75	if (dev->flags & IFF_ALLMULTI) {
	76	err = dev_set_allmulti(master, 1);
	77	if (err < 0)
	78	goto del_unicast;
	79	}
	80	if (dev->flags & IFF_PROMISC) {
	81	err = dev_set_promiscuity(master, 1);
	82	if (err < 0)
	83	goto clear_allmulti;
	84	}
	85
91da11f8	86	return 0;
df02c6ff LB	87
	88	clear_allmulti:
	89	if (dev->flags & IFF_ALLMULTI)
	90	dev_set_allmulti(master, -1);
	91	del_unicast:
8feedbb4	92	if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
a748ee24	93	dev_uc_del(master, dev->dev_addr);
df02c6ff LB	94	out:
df02c6ff LB	95	return err;
91da11f8 LB	96	}
	97
	98	static int dsa_slave_close(struct net_device *dev)
	99	{
df02c6ff	100	struct dsa_slave_priv *p = netdev_priv(dev);
e84665c9	101	struct net_device *master = p->parent->dst->master_netdev;
df02c6ff LB	102
df02c6ff LB	103	dev_mc_unsync(master, dev);
a748ee24	104	dev_uc_unsync(master, dev);
df02c6ff LB	105	if (dev->flags & IFF_ALLMULTI)
	106	dev_set_allmulti(master, -1);
	107	if (dev->flags & IFF_PROMISC)
	108	dev_set_promiscuity(master, -1);
	109
8feedbb4	110	if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
a748ee24	111	dev_uc_del(master, dev->dev_addr);
df02c6ff	112
91da11f8 LB	113	return 0;
	114	}
	115
	116	static void dsa_slave_change_rx_flags(struct net_device *dev, int change)
	117	{
	118	struct dsa_slave_priv *p = netdev_priv(dev);
e84665c9	119	struct net_device *master = p->parent->dst->master_netdev;
91da11f8 LB	120
	121	if (change & IFF_ALLMULTI)
	122	dev_set_allmulti(master, dev->flags & IFF_ALLMULTI ? 1 : -1);
	123	if (change & IFF_PROMISC)
	124	dev_set_promiscuity(master, dev->flags & IFF_PROMISC ? 1 : -1);
	125	}
	126
	127	static void dsa_slave_set_rx_mode(struct net_device *dev)
	128	{
	129	struct dsa_slave_priv *p = netdev_priv(dev);
e84665c9	130	struct net_device *master = p->parent->dst->master_netdev;
91da11f8 LB	131
91da11f8 LB	132	dev_mc_sync(master, dev);
a748ee24	133	dev_uc_sync(master, dev);
91da11f8 LB	134	}
91da11f8 LB	135
df02c6ff	136	static int dsa_slave_set_mac_address(struct net_device dev, void a)
91da11f8	137	{
df02c6ff	138	struct dsa_slave_priv *p = netdev_priv(dev);
e84665c9	139	struct net_device *master = p->parent->dst->master_netdev;
df02c6ff LB	140	struct sockaddr *addr = a;
	141	int err;
	142
	143	if (!is_valid_ether_addr(addr->sa_data))
	144	return -EADDRNOTAVAIL;
	145
	146	if (!(dev->flags & IFF_UP))
	147	goto out;
	148
8feedbb4	149	if (!ether_addr_equal(addr->sa_data, master->dev_addr)) {
a748ee24	150	err = dev_uc_add(master, addr->sa_data);
df02c6ff LB	151	if (err < 0)
	152	return err;
	153	}
	154
8feedbb4	155	if (!ether_addr_equal(dev->dev_addr, master->dev_addr))
a748ee24	156	dev_uc_del(master, dev->dev_addr);
df02c6ff LB	157
	158	out:
	159	memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN);
91da11f8 LB	160
	161	return 0;
	162	}
	163
	164	static int dsa_slave_ioctl(struct net_device dev, struct ifreq ifr, int cmd)
	165	{
	166	struct dsa_slave_priv *p = netdev_priv(dev);
91da11f8 LB	167
91da11f8 LB	168	if (p->phy != NULL)
28b04113	169	return phy_mii_ioctl(p->phy, ifr, cmd);
91da11f8 LB	170
	171	return -EOPNOTSUPP;
	172	}
	173
	174
	175	/* ethtool operations *******************************************************/
	176	static int
	177	dsa_slave_get_settings(struct net_device dev, struct ethtool_cmd cmd)
	178	{
	179	struct dsa_slave_priv *p = netdev_priv(dev);
	180	int err;
	181
	182	err = -EOPNOTSUPP;
	183	if (p->phy != NULL) {
	184	err = phy_read_status(p->phy);
	185	if (err == 0)
	186	err = phy_ethtool_gset(p->phy, cmd);
	187	}
	188
	189	return err;
	190	}
	191
	192	static int
	193	dsa_slave_set_settings(struct net_device dev, struct ethtool_cmd cmd)
	194	{
	195	struct dsa_slave_priv *p = netdev_priv(dev);
	196
	197	if (p->phy != NULL)
	198	return phy_ethtool_sset(p->phy, cmd);
	199
	200	return -EOPNOTSUPP;
	201	}
	202
	203	static void dsa_slave_get_drvinfo(struct net_device *dev,
	204	struct ethtool_drvinfo *drvinfo)
	205	{
7826d43f JP	206	strlcpy(drvinfo->driver, "dsa", sizeof(drvinfo->driver));
	207	strlcpy(drvinfo->version, dsa_driver_version, sizeof(drvinfo->version));
	208	strlcpy(drvinfo->fw_version, "N/A", sizeof(drvinfo->fw_version));
	209	strlcpy(drvinfo->bus_info, "platform", sizeof(drvinfo->bus_info));
91da11f8 LB	210	}
	211
	212	static int dsa_slave_nway_reset(struct net_device *dev)
	213	{
	214	struct dsa_slave_priv *p = netdev_priv(dev);
	215
	216	if (p->phy != NULL)
	217	return genphy_restart_aneg(p->phy);
	218
	219	return -EOPNOTSUPP;
	220	}
	221
	222	static u32 dsa_slave_get_link(struct net_device *dev)
	223	{
	224	struct dsa_slave_priv *p = netdev_priv(dev);
	225
	226	if (p->phy != NULL) {
	227	genphy_update_link(p->phy);
	228	return p->phy->link;
	229	}
	230
	231	return -EOPNOTSUPP;
	232	}
	233
	234	static void dsa_slave_get_strings(struct net_device *dev,
	235	uint32_t stringset, uint8_t *data)
	236	{
	237	struct dsa_slave_priv *p = netdev_priv(dev);
	238	struct dsa_switch *ds = p->parent;
	239
	240	if (stringset == ETH_SS_STATS) {
	241	int len = ETH_GSTRING_LEN;
	242
	243	strncpy(data, "tx_packets", len);
	244	strncpy(data + len, "tx_bytes", len);
	245	strncpy(data + 2 * len, "rx_packets", len);
	246	strncpy(data + 3 * len, "rx_bytes", len);
	247	if (ds->drv->get_strings != NULL)
	248	ds->drv->get_strings(ds, p->port, data + 4 * len);
	249	}
	250	}
	251
	252	static void dsa_slave_get_ethtool_stats(struct net_device *dev,
	253	struct ethtool_stats *stats,
	254	uint64_t *data)
	255	{
	256	struct dsa_slave_priv *p = netdev_priv(dev);
	257	struct dsa_switch *ds = p->parent;
	258
	259	data[0] = p->dev->stats.tx_packets;
	260	data[1] = p->dev->stats.tx_bytes;
	261	data[2] = p->dev->stats.rx_packets;
	262	data[3] = p->dev->stats.rx_bytes;
	263	if (ds->drv->get_ethtool_stats != NULL)
	264	ds->drv->get_ethtool_stats(ds, p->port, data + 4);
	265	}
	266
	267	static int dsa_slave_get_sset_count(struct net_device *dev, int sset)
	268	{
	269	struct dsa_slave_priv *p = netdev_priv(dev);
	270	struct dsa_switch *ds = p->parent;
	271
	272	if (sset == ETH_SS_STATS) {
	273	int count;
274
275	count = 4;
276	if (ds->drv->get_sset_count != NULL)
277	count += ds->drv->get_sset_count(ds);
278
279	return count;
280	}
281
282	return -EOPNOTSUPP;
283	}
284
285	static const struct ethtool_ops dsa_slave_ethtool_ops = {
286	.get_settings = dsa_slave_get_settings,
287	.set_settings = dsa_slave_set_settings,
288	.get_drvinfo = dsa_slave_get_drvinfo,
289	.nway_reset = dsa_slave_nway_reset,
290	.get_link = dsa_slave_get_link,
91da11f8 LB	291	.get_strings = dsa_slave_get_strings,
	292	.get_ethtool_stats = dsa_slave_get_ethtool_stats,
	293	.get_sset_count = dsa_slave_get_sset_count,
	294	};
	295
d442ad4a SH	296	#ifdef CONFIG_NET_DSA_TAG_DSA
d442ad4a SH	297	static const struct net_device_ops dsa_netdev_ops = {
c0840801	298	.ndo_init = dsa_slave_init,
d442ad4a SH	299	.ndo_open = dsa_slave_open,
	300	.ndo_stop = dsa_slave_close,
	301	.ndo_start_xmit = dsa_xmit,
	302	.ndo_change_rx_flags = dsa_slave_change_rx_flags,
	303	.ndo_set_rx_mode = dsa_slave_set_rx_mode,
d442ad4a SH	304	.ndo_set_mac_address = dsa_slave_set_mac_address,
	305	.ndo_do_ioctl = dsa_slave_ioctl,
	306	};
	307	#endif
	308	#ifdef CONFIG_NET_DSA_TAG_EDSA
	309	static const struct net_device_ops edsa_netdev_ops = {
c0840801	310	.ndo_init = dsa_slave_init,
d442ad4a SH	311	.ndo_open = dsa_slave_open,
	312	.ndo_stop = dsa_slave_close,
	313	.ndo_start_xmit = edsa_xmit,
	314	.ndo_change_rx_flags = dsa_slave_change_rx_flags,
	315	.ndo_set_rx_mode = dsa_slave_set_rx_mode,
d442ad4a SH	316	.ndo_set_mac_address = dsa_slave_set_mac_address,
	317	.ndo_do_ioctl = dsa_slave_ioctl,
	318	};
	319	#endif
	320	#ifdef CONFIG_NET_DSA_TAG_TRAILER
	321	static const struct net_device_ops trailer_netdev_ops = {
c0840801	322	.ndo_init = dsa_slave_init,
d442ad4a SH	323	.ndo_open = dsa_slave_open,
	324	.ndo_stop = dsa_slave_close,
	325	.ndo_start_xmit = trailer_xmit,
	326	.ndo_change_rx_flags = dsa_slave_change_rx_flags,
	327	.ndo_set_rx_mode = dsa_slave_set_rx_mode,
d442ad4a SH	328	.ndo_set_mac_address = dsa_slave_set_mac_address,
	329	.ndo_do_ioctl = dsa_slave_ioctl,
	330	};
	331	#endif
91da11f8 LB	332
	333	/* slave device setup *******************************************************/
	334	struct net_device *
	335	dsa_slave_create(struct dsa_switch ds, struct device parent,
	336	int port, char *name)
	337	{
e84665c9	338	struct net_device *master = ds->dst->master_netdev;
91da11f8 LB	339	struct net_device *slave_dev;
	340	struct dsa_slave_priv *p;
	341	int ret;
	342
	343	slave_dev = alloc_netdev(sizeof(struct dsa_slave_priv),
	344	name, ether_setup);
	345	if (slave_dev == NULL)
	346	return slave_dev;
	347
	348	slave_dev->features = master->vlan_features;
	349	SET_ETHTOOL_OPS(slave_dev, &dsa_slave_ethtool_ops);
	350	memcpy(slave_dev->dev_addr, master->dev_addr, ETH_ALEN);
	351	slave_dev->tx_queue_len = 0;
d442ad4a	352
e84665c9	353	switch (ds->dst->tag_protocol) {
cf85d08f LB	354	#ifdef CONFIG_NET_DSA_TAG_DSA
cf85d08f LB	355	case htons(ETH_P_DSA):
d442ad4a	356	slave_dev->netdev_ops = &dsa_netdev_ops;
cf85d08f LB	357	break;
cf85d08f LB	358	#endif
91da11f8 LB	359	#ifdef CONFIG_NET_DSA_TAG_EDSA
91da11f8 LB	360	case htons(ETH_P_EDSA):
d442ad4a	361	slave_dev->netdev_ops = &edsa_netdev_ops;
91da11f8	362	break;
396138f0 LB	363	#endif
	364	#ifdef CONFIG_NET_DSA_TAG_TRAILER
	365	case htons(ETH_P_TRAILER):
d442ad4a	366	slave_dev->netdev_ops = &trailer_netdev_ops;
396138f0	367	break;
91da11f8 LB	368	#endif
	369	default:
	370	BUG();
	371	}
d442ad4a	372
91da11f8 LB	373	SET_NETDEV_DEV(slave_dev, parent);
	374	slave_dev->vlan_features = master->vlan_features;
	375
	376	p = netdev_priv(slave_dev);
	377	p->dev = slave_dev;
	378	p->parent = ds;
	379	p->port = port;
	380	p->phy = ds->slave_mii_bus->phy_map[port];
	381
	382	ret = register_netdev(slave_dev);
	383	if (ret) {
	384	printk(KERN_ERR "%s: error %d registering interface %s\n",
	385	master->name, ret, slave_dev->name);
	386	free_netdev(slave_dev);
	387	return NULL;
	388	}
	389
	390	netif_carrier_off(slave_dev);
	391
	392	if (p->phy != NULL) {
fb28ad35	393	phy_attach(slave_dev, dev_name(&p->phy->dev),
f9a8f83b	394	PHY_INTERFACE_MODE_GMII);
91da11f8 LB	395
	396	p->phy->autoneg = AUTONEG_ENABLE;
	397	p->phy->speed = 0;
	398	p->phy->duplex = 0;
	399	p->phy->advertising = p->phy->supported \| ADVERTISED_Autoneg;
	400	phy_start_aneg(p->phy);
	401	}
	402
	403	return slave_dev;
	404	}