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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 15 Oct 2024 15:24:34.7211 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 831e4da0-c848-4740-6d30-08dced2d799a X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.118.232];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN3PEPF0000B36D.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: IA0PR12MB8864 Content-Type: text/plain; charset="utf-8" From: Yonatan Maman 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 Reviewed-by: Gal Shalom --- 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/m= lx5/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; } =20 int set_roce_addr(struct mlx5_ib_dev *dev, u32 port_num, --=20 2.34.1