[PATCH mlx5-next 06/10] IB/mlx5: Mask out unsupported ODP capabilities for kernel QPs
From: Leon Romanovsky <leon@kernel.org>
Date: 2020-01-15 12:44:02
Also in:
linux-rdma
Subsystem:
infiniband subsystem, mellanox mlx5 ib driver, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
From: Moni Shoua <redacted> The ODP handler for WQEs in RQ or SRQ is not implented for kernel QPs. Therefore don't report support in these if query comes from a kernel user. Signed-off-by: Moni Shoua <redacted> Signed-off-by: Leon Romanovsky <redacted> --- drivers/infiniband/hw/mlx5/main.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index e34531d5c806..01fc09f3ddd3 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c@@ -1015,6 +1015,23 @@ static int mlx5_ib_query_device(struct ib_device *ibdev, if (dev->odp_caps.general_caps & IB_ODP_SUPPORT) props->device_cap_flags |= IB_DEVICE_ON_DEMAND_PAGING; props->odp_caps = dev->odp_caps; + if (!uhw) { + /* ODP for kernel QPs is not implemented for receive + * WQEs and SRQ WQEs + */ + props->odp_caps.per_transport_caps.rc_odp_caps &= + ~(IB_ODP_SUPPORT_READ | + IB_ODP_SUPPORT_SRQ_RECV); + props->odp_caps.per_transport_caps.uc_odp_caps &= + ~(IB_ODP_SUPPORT_READ | + IB_ODP_SUPPORT_SRQ_RECV); + props->odp_caps.per_transport_caps.ud_odp_caps &= + ~(IB_ODP_SUPPORT_READ | + IB_ODP_SUPPORT_SRQ_RECV); + props->odp_caps.per_transport_caps.xrc_odp_caps &= + ~(IB_ODP_SUPPORT_READ | + IB_ODP_SUPPORT_SRQ_RECV); + } } if (MLX5_CAP_GEN(mdev, cd)) --
2.20.1