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net/mlx4_en: Implement ndo_get_phys_port_id 

Use the port GUID read from the firmware to identify the physical port.
This port identifier is available via ndo_get_phys_port_id for both PF
and VF net-devices.

Signed-off-by: Hadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Hadar Hen Zion 2013-12-19 21:20:13 +02:00 committed by David S. Miller
parent 8e1a28e8e6
commit 84c864038d
1 changed files with 23 additions and 0 deletions
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23
drivers/net/ethernet/mellanox/mlx4/en_netdev.c
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@ -2164,6 +2164,27 @@ static int mlx4_en_set_vf_link_state(struct net_device *dev, int vf, int link_st
return mlx4_set_vf_link_state(mdev->dev, en_priv->port, vf, link_state);
}
#define PORT_ID_BYTE_LEN 8
static int mlx4_en_get_phys_port_id(struct net_device *dev,
struct netdev_phys_port_id *ppid)
{
struct mlx4_en_priv *priv = netdev_priv(dev);
struct mlx4_dev *mdev = priv->mdev->dev;
int i;
u64 phys_port_id = mdev->caps.phys_port_id[priv->port];
if (!phys_port_id)
return -EOPNOTSUPP;
ppid->id_len = sizeof(phys_port_id);
for (i = PORT_ID_BYTE_LEN - 1; i >= 0; --i) {
ppid->id[i] = phys_port_id & 0xff;
phys_port_id >>= 8;
}
return 0;
}
static const struct net_device_ops mlx4_netdev_ops = {
.ndo_open = mlx4_en_open,
.ndo_stop = mlx4_en_close,
@ -2189,6 +2210,7 @@ static const struct net_device_ops mlx4_netdev_ops = {
#ifdef CONFIG_NET_RX_BUSY_POLL
.ndo_busy_poll = mlx4_en_low_latency_recv,
#endif
.ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
};
static const struct net_device_ops mlx4_netdev_ops_master = {
@ -2217,6 +2239,7 @@ static const struct net_device_ops mlx4_netdev_ops_master = {
#ifdef CONFIG_RFS_ACCEL
.ndo_rx_flow_steer = mlx4_en_filter_rfs,
#endif
.ndo_get_phys_port_id = mlx4_en_get_phys_port_id,
};
int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,