diff options
Diffstat (limited to 'drivers/net/ethernet/mellanox/mlx4/main.c')
| -rw-r--r-- | drivers/net/ethernet/mellanox/mlx4/main.c | 126 |
1 files changed, 119 insertions, 7 deletions
diff --git a/drivers/net/ethernet/mellanox/mlx4/main.c b/drivers/net/ethernet/mellanox/mlx4/main.c index 5f15014713bc..8bb05b46db86 100644 --- a/drivers/net/ethernet/mellanox/mlx4/main.c +++ b/drivers/net/ethernet/mellanox/mlx4/main.c @@ -394,7 +394,7 @@ static int mlx4_how_many_lives_vf(struct mlx4_dev *dev) return ret; } -static int mlx4_is_slave_active(struct mlx4_dev *dev, int slave) +int mlx4_is_slave_active(struct mlx4_dev *dev, int slave) { struct mlx4_priv *priv = mlx4_priv(dev); struct mlx4_slave_state *s_slave; @@ -646,6 +646,99 @@ out: return err ? err : count; } +enum ibta_mtu { + IB_MTU_256 = 1, + IB_MTU_512 = 2, + IB_MTU_1024 = 3, + IB_MTU_2048 = 4, + IB_MTU_4096 = 5 +}; + +static inline int int_to_ibta_mtu(int mtu) +{ + switch (mtu) { + case 256: return IB_MTU_256; + case 512: return IB_MTU_512; + case 1024: return IB_MTU_1024; + case 2048: return IB_MTU_2048; + case 4096: return IB_MTU_4096; + default: return -1; + } +} + +static inline int ibta_mtu_to_int(enum ibta_mtu mtu) +{ + switch (mtu) { + case IB_MTU_256: return 256; + case IB_MTU_512: return 512; + case IB_MTU_1024: return 1024; + case IB_MTU_2048: return 2048; + case IB_MTU_4096: return 4096; + default: return -1; + } +} + +static ssize_t show_port_ib_mtu(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, + port_mtu_attr); + struct mlx4_dev *mdev = info->dev; + + if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) + mlx4_warn(mdev, "port level mtu is only used for IB ports\n"); + + sprintf(buf, "%d\n", + ibta_mtu_to_int(mdev->caps.port_ib_mtu[info->port])); + return strlen(buf); +} + +static ssize_t set_port_ib_mtu(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct mlx4_port_info *info = container_of(attr, struct mlx4_port_info, + port_mtu_attr); + struct mlx4_dev *mdev = info->dev; + struct mlx4_priv *priv = mlx4_priv(mdev); + int err, port, mtu, ibta_mtu = -1; + + if (mdev->caps.port_type[info->port] == MLX4_PORT_TYPE_ETH) { + mlx4_warn(mdev, "port level mtu is only used for IB ports\n"); + return -EINVAL; + } + + err = sscanf(buf, "%d", &mtu); + if (err > 0) + ibta_mtu = int_to_ibta_mtu(mtu); + + if (err <= 0 || ibta_mtu < 0) { + mlx4_err(mdev, "%s is invalid IBTA mtu\n", buf); + return -EINVAL; + } + + mdev->caps.port_ib_mtu[info->port] = ibta_mtu; + + mlx4_stop_sense(mdev); + mutex_lock(&priv->port_mutex); + mlx4_unregister_device(mdev); + for (port = 1; port <= mdev->caps.num_ports; port++) { + mlx4_CLOSE_PORT(mdev, port); + err = mlx4_SET_PORT(mdev, port); + if (err) { + mlx4_err(mdev, "Failed to set port %d, " + "aborting\n", port); + goto err_set_port; + } + } + err = mlx4_register_device(mdev); +err_set_port: + mutex_unlock(&priv->port_mutex); + mlx4_start_sense(mdev); + return err ? err : count; +} + static int mlx4_load_fw(struct mlx4_dev *dev) { struct mlx4_priv *priv = mlx4_priv(dev); @@ -1133,6 +1226,8 @@ static int mlx4_init_hca(struct mlx4_dev *dev) goto err_stop_fw; } + dev->caps.max_fmr_maps = (1 << (32 - ilog2(dev->caps.num_mpts))) - 1; + init_hca.log_uar_sz = ilog2(dev->caps.num_uars); init_hca.uar_page_sz = PAGE_SHIFT - 12; @@ -1363,12 +1458,10 @@ static int mlx4_setup_hca(struct mlx4_dev *dev) "with caps = 0\n", port, err); dev->caps.ib_port_def_cap[port] = ib_port_default_caps; - err = mlx4_check_ext_port_caps(dev, port); - if (err) - mlx4_warn(dev, "failed to get port %d extended " - "port capabilities support info (%d)." - " Assuming not supported\n", - port, err); + if (mlx4_is_mfunc(dev)) + dev->caps.port_ib_mtu[port] = IB_MTU_2048; + else + dev->caps.port_ib_mtu[port] = IB_MTU_4096; err = mlx4_SET_PORT(dev, port); if (err) { @@ -1524,6 +1617,24 @@ static int mlx4_init_port_info(struct mlx4_dev *dev, int port) info->port = -1; } + sprintf(info->dev_mtu_name, "mlx4_port%d_mtu", port); + info->port_mtu_attr.attr.name = info->dev_mtu_name; + if (mlx4_is_mfunc(dev)) + info->port_mtu_attr.attr.mode = S_IRUGO; + else { + info->port_mtu_attr.attr.mode = S_IRUGO | S_IWUSR; + info->port_mtu_attr.store = set_port_ib_mtu; + } + info->port_mtu_attr.show = show_port_ib_mtu; + sysfs_attr_init(&info->port_mtu_attr.attr); + + err = device_create_file(&dev->pdev->dev, &info->port_mtu_attr); + if (err) { + mlx4_err(dev, "Failed to create mtu file for port %d\n", port); + device_remove_file(&info->dev->pdev->dev, &info->port_attr); + info->port = -1; + } + return err; } @@ -1533,6 +1644,7 @@ static void mlx4_cleanup_port_info(struct mlx4_port_info *info) return; device_remove_file(&info->dev->pdev->dev, &info->port_attr); + device_remove_file(&info->dev->pdev->dev, &info->port_mtu_attr); } static int mlx4_init_steering(struct mlx4_dev *dev) |