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Commit 84c86403 authored by Hadar Hen Zion's avatar Hadar Hen Zion Committed by David S. Miller
Browse files

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: default avatarHadar Hen Zion <hadarh@mellanox.com>
Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8e1a28e8

drivers/net/ethernet/mellanox/mlx4/en_netdev.c

+23 −0
Original line number Diff line number Diff line
@@ -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,