From: Michael Guralnik <michaelgur@mellanox.com>
Date: Mon, 19 Aug 2019 15:08:15 +0300
Subject: IB/mlx5: Add page fault handler for DC initiator WQE
Patch-mainline: v5.4-rc1
Git-commit: 75e46fc02c975f401e70a53ecd55d475081d13a3
References: jsc#SLE-8446
Parsing DC initiator WQEs upon page fault requires skipping an address
vector segment, as in UD WQEs.
Link: https://lore.kernel.org/r/20190819120815.21225-4-leon@kernel.org
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
drivers/infiniband/hw/mlx5/odp.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/infiniband/hw/mlx5/odp.c
+++ b/drivers/infiniband/hw/mlx5/odp.c
@@ -1018,7 +1018,8 @@ static int mlx5_ib_mr_initiator_pfault_h
if (qp->ibqp.qp_type == IB_QPT_XRC_INI)
*wqe += sizeof(struct mlx5_wqe_xrc_seg);
- 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);