[PATCH rdma-next 3/3] IB/mlx5: Add page fault handler for DC initiator WQE
From: Leon Romanovsky <leon@kernel.org>
Date: 2019-08-01 12:21:56
Also in:
linux-rdma
Subsystem:
infiniband subsystem, mellanox mlx5 ib driver, the rest · Maintainers:
Jason Gunthorpe, Leon Romanovsky, Linus Torvalds
From: Michael Guralnik <redacted> Parsing DC initiator WQEs upon page fault requires skipping an address vector segment, as in UD WQEs. Signed-off-by: Michael Guralnik <redacted> Reviewed-by: Moni Shoua <redacted> Signed-off-by: Leon Romanovsky <redacted> --- drivers/infiniband/hw/mlx5/odp.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/infiniband/hw/mlx5/odp.c b/drivers/infiniband/hw/mlx5/odp.c
index 5e87a5e25574..6f1de5edbe8e 100644
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c@@ -1065,6 +1065,12 @@ static int mlx5_ib_mr_initiator_pfault_handler( case IB_QPT_UD: transport_caps = dev->odp_caps.per_transport_caps.ud_odp_caps; break; + case IB_QPT_DRIVER: + if (qp->qp_sub_type == MLX5_IB_QPT_DCI) { + transport_caps = dev->dc_odp_caps; + break; + } + /* fall through */ default: mlx5_ib_err(dev, "ODP fault on QP of an unsupported transport 0x%x\n", qp->ibqp.qp_type);
@@ -1078,7 +1084,8 @@ static int mlx5_ib_mr_initiator_pfault_handler( return -EFAULT; } - if (qp->ibqp.qp_type == IB_QPT_UD) { + if (qp->ibqp.qp_type == IB_QPT_UD || + qp->qp_sub_type == MLX5_IB_QPT_DCI) { av = *wqe; if (av->dqp_dct & cpu_to_be32(MLX5_EXTENDED_UD_AV)) *wqe += sizeof(struct mlx5_av);
--
2.20.1