diff options
Diffstat (limited to 'drivers/net/mlx4/main.c')
| -rw-r--r-- | drivers/net/mlx4/main.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/mlx4/main.c b/drivers/net/mlx4/main.c index ed7e8d76cde0..478b3ba74edc 100644 --- a/drivers/net/mlx4/main.c +++ b/drivers/net/mlx4/main.c @@ -300,6 +300,17 @@ static int __devinit mlx4_init_icm(struct mlx4_dev *dev, goto err_unmap_cmpt; } + /* + * Reserved MTT entries must be aligned up to a cacheline + * boundary, since the FW will write to them, while the driver + * writes to all other MTT entries. (The variable + * dev->caps.mtt_entry_sz below is really the MTT segment + * size, not the raw entry size) + */ + dev->caps.reserved_mtts = + ALIGN(dev->caps.reserved_mtts * dev->caps.mtt_entry_sz, + dma_get_cache_alignment()) / dev->caps.mtt_entry_sz; + err = mlx4_init_icm_table(dev, &priv->mr_table.mtt_table, init_hca->mtt_base, dev->caps.mtt_entry_sz, |