From: Maor Gottlieb <maorg@xxxxxxxxxxxx>
Since this feature can globally block the RX port, it should
be allowed to privileged users only.
Fixes: 03404e8ae652("IB/mlx5: Add support to dropless RQ")
Signed-off-by: Maor Gottlieb <maorg@xxxxxxxxxxxx>
Signed-off-by: Leon Romanovsky <leonro@xxxxxxxxxxxx>
---
Changelog:
v1: Changed permission from CAP_NET_RAW to be CAP_SYS_RAWIO like in
the devx code.
v0: https://lore.kernel.org/linux-rdma/20200318100223.46436-1-leon@xxxxxxxxxx
---
drivers/infiniband/hw/mlx5/qp.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c
index d3055f3eb0b6..cf44c5a21f18 100644
--- a/drivers/infiniband/hw/mlx5/qp.c
+++ b/drivers/infiniband/hw/mlx5/qp.c
@@ -6247,6 +6247,10 @@ struct ib_wq *mlx5_ib_create_wq(struct ib_pd *pd,
if (udata->outlen && udata->outlen < min_resp_len)
return ERR_PTR(-EINVAL);
+ if (!capable(CAP_SYS_RAWIO) &&
+ init_attr->create_flags & IB_WQ_FLAGS_DELAY_DROP)
+ return ERR_PTR(-EPERM);
+
dev = to_mdev(pd->device);
switch (init_attr->wq_type) {
case IB_WQT_RQ:
--
2.24.1
