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Use static device numbering instead of dynamic one when creating

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mlx4en network interfaces. This prevents infinite unit number growth
typically when the mlx4en driver is used inside virtual machines which
support runtime PCI attach and detach.

MFC after:	3 days
Sponsored by:	Mellanox Technologies
This commit is contained in:
Hans Petter Selasky 2017-06-15 11:56:40 +00:00
parent b7eaed250f
commit d4a7f90c0a
1 changed files with 2 additions and 2 deletions
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4
sys/dev/mlx4/mlx4_en/mlx4_en_netdev.c
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@ -54,7 +54,6 @@
static void mlx4_en_sysctl_stat(struct mlx4_en_priv *priv);
static void mlx4_en_sysctl_conf(struct mlx4_en_priv *priv);
static int mlx4_en_unit;
#ifdef CONFIG_NET_RX_BUSY_POLL
/* must be called with local_bh_disable()d */
@ -2052,7 +2051,8 @@ int mlx4_en_init_netdev(struct mlx4_en_dev *mdev, int port,
return -ENOMEM;
}
dev->if_softc = priv;
if_initname(dev, "mlxen", atomic_fetchadd_int(&mlx4_en_unit, 1));
if_initname(dev, "mlxen", (device_get_unit(
mdev->pdev->dev.bsddev) * MLX4_MAX_PORTS) + port - 1);
dev->if_mtu = ETHERMTU;
dev->if_init = mlx4_en_open;
dev->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST;