From: Yonatan Maman <Ymaman@xxxxxxxxxx>
ATS (Address Translation Services) mainly utilized to optimize PCI
Peer-to-Peer transfers and prevent bus failures. This change employed
ATS usage for ODP memory, to optimize DMA P2P for ODP memory. (e.g DMA
P2P for private device pages - ODP memory).
Signed-off-by: Yonatan Maman <Ymaman@xxxxxxxxxx>
Reviewed-by: Gal Shalom <GalShalom@xxxxxxxxxx>
---
drivers/infiniband/hw/mlx5/mlx5_ib.h | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/infiniband/hw/mlx5/mlx5_ib.h b/drivers/infiniband/hw/mlx5/mlx5_ib.h
index 23fd72f7f63d..55ccbc7d9aa3 100644
--- a/drivers/infiniband/hw/mlx5/mlx5_ib.h
+++ b/drivers/infiniband/hw/mlx5/mlx5_ib.h
@@ -1701,9 +1701,9 @@ static inline bool rt_supported(int ts_cap)
static inline bool mlx5_umem_needs_ats(struct mlx5_ib_dev *dev,
struct ib_umem *umem, int access_flags)
{
- if (!MLX5_CAP_GEN(dev->mdev, ats) || !umem->is_dmabuf)
- return false;
- return access_flags & IB_ACCESS_RELAXED_ORDERING;
+ if (MLX5_CAP_GEN(dev->mdev, ats) && (umem->is_dmabuf || umem->is_odp))
+ return access_flags & IB_ACCESS_RELAXED_ORDERING;
+ return false;
}
int set_roce_addr(struct mlx5_ib_dev *dev, u32 port_num,
--
2.34.1
