diff options
| -rw-r--r-- | drivers/net/mlx4/pd.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/mlx4/pd.c b/drivers/net/mlx4/pd.c index 3a93c5f..aa61689 100644 --- a/drivers/net/mlx4/pd.c +++ b/drivers/net/mlx4/pd.c @@ -91,6 +91,13 @@ EXPORT_SYMBOL_GPL(mlx4_uar_free); int mlx4_init_uar_table(struct mlx4_dev *dev) { + if (dev->caps.num_uars <= 128) { + mlx4_err(dev, "Only %d UAR pages (need more than 128)\n", + dev->caps.num_uars); + mlx4_err(dev, "Increase firmware log2_uar_bar_megabytes?\n"); + return -ENODEV; + } + return mlx4_bitmap_init(&mlx4_priv(dev)->uar_table.bitmap, dev->caps.num_uars, dev->caps.num_uars - 1, max(128, dev->caps.reserved_uars)); |