Commit 745d8ae4 authored by Eugenia Emantayev's avatar Eugenia Emantayev Committed by David S. Miller
Browse files

net/mlx4: Spoofcheck and zero MAC can't coexist 



Spoofcheck can't be enabled if VF MAC is zero.
Vice versa, can't zero MAC if spoofcheck is on.

Fixes: 8f7ba3ca ('net/mlx4: Add set VF mac address support')
Signed-off-by: default avatarEugenia Emantayev <eugenia@mellanox.com>
Signed-off-by: default avatarTariq Toukan <tariqt@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 423b3aec

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

+20 −2
Original line number Diff line number Diff line
@@ -43,6 +43,7 @@ 
#include <linux/semaphore.h>

#include <rdma/ib_smi.h>

#include <linux/delay.h>

#include <linux/etherdevice.h>



#include <asm/io.h>
@@ -2955,7 +2956,7 @@ static bool mlx4_valid_vf_state_change(struct mlx4_dev *dev, int port, 
	return false;

}



int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac)

int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u8 *mac)

{

	struct mlx4_priv *priv = mlx4_priv(dev);

	struct mlx4_vport_state *s_info;
@@ -2964,13 +2965,22 @@ int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac) 
	if (!mlx4_is_master(dev))

		return -EPROTONOSUPPORT;



	if (is_multicast_ether_addr(mac))

		return -EINVAL;



	slave = mlx4_get_slave_indx(dev, vf);

	if (slave < 0)

		return -EINVAL;



	port = mlx4_slaves_closest_port(dev, slave, port);

	s_info = &priv->mfunc.master.vf_admin[slave].vport[port];

	s_info->mac = mac;



	if (s_info->spoofchk && is_zero_ether_addr(mac)) {

		mlx4_info(dev, "MAC invalidation is not allowed when spoofchk is on\n");

		return -EPERM;

	}



	s_info->mac = mlx4_mac_to_u64(mac);

	mlx4_info(dev, "default mac on vf %d port %d to %llX will take effect only after vf restart\n",

		  vf, port, s_info->mac);

	return 0;
@@ -3143,6 +3153,7 @@ int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting) 
	struct mlx4_priv *priv = mlx4_priv(dev);

	struct mlx4_vport_state *s_info;

	int slave;

	u8 mac[ETH_ALEN];



	if ((!mlx4_is_master(dev)) ||

	    !(dev->caps.flags2 & MLX4_DEV_CAP_FLAG2_FSM))
@@ -3154,6 +3165,13 @@ int mlx4_set_vf_spoofchk(struct mlx4_dev *dev, int port, int vf, bool setting) 


	port = mlx4_slaves_closest_port(dev, slave, port);

	s_info = &priv->mfunc.master.vf_admin[slave].vport[port];



	mlx4_u64_to_mac(mac, s_info->mac);

	if (setting && !is_valid_ether_addr(mac)) {

		mlx4_info(dev, "Illegal MAC with spoofchk\n");

		return -EPERM;

	}



	s_info->spoofchk = setting;



	return 0;

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

+1 −5
Original line number Diff line number Diff line
@@ -2485,12 +2485,8 @@ static int mlx4_en_set_vf_mac(struct net_device *dev, int queue, u8 *mac) 
{

	struct mlx4_en_priv *en_priv = netdev_priv(dev);

	struct mlx4_en_dev *mdev = en_priv->mdev;

	u64 mac_u64 = mlx4_mac_to_u64(mac);



	if (is_multicast_ether_addr(mac))

		return -EINVAL;



	return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac_u64);

	return mlx4_set_vf_mac(mdev->dev, en_priv->port, queue, mac);

}



static int mlx4_en_set_vf_vlan(struct net_device *dev, int vf, u16 vlan, u8 qos,

include/linux/mlx4/cmd.h

+1 −1
Original line number Diff line number Diff line
@@ -308,7 +308,7 @@ int mlx4_get_counter_stats(struct mlx4_dev *dev, int counter_index, 
int mlx4_get_vf_stats(struct mlx4_dev *dev, int port, int vf_idx,

		      struct ifla_vf_stats *vf_stats);

u32 mlx4_comm_get_version(void);

int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u64 mac);

int mlx4_set_vf_mac(struct mlx4_dev *dev, int port, int vf, u8 *mac);

int mlx4_set_vf_vlan(struct mlx4_dev *dev, int port, int vf, u16 vlan,

		     u8 qos, __be16 proto);

int mlx4_set_vf_rate(struct mlx4_dev *dev, int port, int vf, int min_tx_rate,

include/linux/mlx4/driver.h

+10 −0
Original line number Diff line number Diff line
@@ -104,4 +104,14 @@ static inline u64 mlx4_mac_to_u64(u8 *addr) 
	return mac;

}



static inline void mlx4_u64_to_mac(u8 *addr, u64 mac)

{

	int i;



	for (i = ETH_ALEN; i > 0; i--) {

		addr[i - 1] = mac && 0xFF;

		mac >>= 8;

	}

}



#endif /* MLX4_DRIVER_H */

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