diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/main.c | 107 |
1 files changed, 97 insertions, 10 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 31c491e02e69..f1b6d219e445 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -1221,6 +1221,76 @@ err_set_port: return err ? err : count; } +/* bond for multi-function device */ +#define MAX_MF_BOND_ALLOWED_SLAVES 63 +static int mlx4_mf_bond(struct mlx4_dev *dev) +{ + int err = 0; + struct mlx4_slaves_pport slaves_port1; + struct mlx4_slaves_pport slaves_port2; + DECLARE_BITMAP(slaves_port_1_2, MLX4_MFUNC_MAX); + + slaves_port1 = mlx4_phys_to_slaves_pport(dev, 1); + slaves_port2 = mlx4_phys_to_slaves_pport(dev, 2); + bitmap_and(slaves_port_1_2, + slaves_port1.slaves, slaves_port2.slaves, + dev->persist->num_vfs + 1); + + /* only single port vfs are allowed */ + if (bitmap_weight(slaves_port_1_2, dev->persist->num_vfs + 1) > 1) { + mlx4_warn(dev, "HA mode unsupported for dual ported VFs\n"); + return -EINVAL; + } + + /* limit on maximum allowed VFs */ + if ((bitmap_weight(slaves_port1.slaves, dev->persist->num_vfs + 1) + + bitmap_weight(slaves_port2.slaves, dev->persist->num_vfs + 1)) > + MAX_MF_BOND_ALLOWED_SLAVES) + return -EINVAL; + + if (dev->caps.steering_mode != MLX4_STEERING_MODE_DEVICE_MANAGED) { + mlx4_warn(dev, "HA mode unsupported for NON DMFS steering\n"); + return -EINVAL; + } + + err = mlx4_bond_mac_table(dev); + if (err) + return err; + err = mlx4_bond_vlan_table(dev); + if (err) + goto err1; + err = mlx4_bond_fs_rules(dev); + if (err) + goto err2; + + return 0; +err2: + (void)mlx4_unbond_vlan_table(dev); +err1: + (void)mlx4_unbond_mac_table(dev); + return err; +} + +static int mlx4_mf_unbond(struct mlx4_dev *dev) +{ + int ret, ret1; + + ret = mlx4_unbond_fs_rules(dev); + if (ret) + mlx4_warn(dev, "multifunction unbond for flow rules failedi (%d)\n", ret); + ret1 = mlx4_unbond_mac_table(dev); + if (ret1) { + mlx4_warn(dev, "multifunction unbond for MAC table failed (%d)\n", ret1); + ret = ret1; + } + ret1 = mlx4_unbond_vlan_table(dev); + if (ret1) { + mlx4_warn(dev, "multifunction unbond for VLAN table failed (%d)\n", ret1); + ret = ret1; + } + return ret; +} + int mlx4_bond(struct mlx4_dev *dev) { int ret = 0; @@ -1228,16 +1298,23 @@ int mlx4_bond(struct mlx4_dev *dev) mutex_lock(&priv->bond_mutex); - if (!mlx4_is_bonded(dev)) + if (!mlx4_is_bonded(dev)) { ret = mlx4_do_bond(dev, true); - else - ret = 0; + if (ret) + mlx4_err(dev, "Failed to bond device: %d\n", ret); + if (!ret && mlx4_is_master(dev)) { + ret = mlx4_mf_bond(dev); + if (ret) { + mlx4_err(dev, "bond for multifunction failed\n"); + mlx4_do_bond(dev, false); + } + } + } mutex_unlock(&priv->bond_mutex); - if (ret) - mlx4_err(dev, "Failed to bond device: %d\n", ret); - else + if (!ret) mlx4_dbg(dev, "Device is bonded\n"); + return ret; } EXPORT_SYMBOL_GPL(mlx4_bond); @@ -1249,14 +1326,24 @@ int mlx4_unbond(struct mlx4_dev *dev) mutex_lock(&priv->bond_mutex); - if (mlx4_is_bonded(dev)) + if (mlx4_is_bonded(dev)) { + int ret2 = 0; + ret = mlx4_do_bond(dev, false); + if (ret) + mlx4_err(dev, "Failed to unbond device: %d\n", ret); + if (mlx4_is_master(dev)) + ret2 = mlx4_mf_unbond(dev); + if (ret2) { + mlx4_warn(dev, "Failed to unbond device for multifunction (%d)\n", ret2); + ret = ret2; + } + } mutex_unlock(&priv->bond_mutex); - if (ret) - mlx4_err(dev, "Failed to unbond device: %d\n", ret); - else + if (!ret) mlx4_dbg(dev, "Device is unbonded\n"); + return ret; } EXPORT_SYMBOL_GPL(mlx4_unbond); |