Files
linux/drivers/infiniband/hw/mlx5
Yishai Hadas b4592b8383 IB/mlx5: Block DEVX umem from the non applicable cases
[ Upstream commit 47f07f03b5 ]

Blocks creating a DEVX UMEM with the non applicable access flags
as of ODP, MW_BIND, etc.

Specifically when an ODP flag is used below WARN call trace is issued.

[ 2510.404131] RIP: 0010:__mlx5_ib_populate_pas+0x207/0x220 [mlx5_ib]
...
[ 2510.404143] Call Trace:
[ 2510.404150]  ? __kmalloc_node+0x1b3/0x280
[ 2510.404156]  ? _uverbs_alloc+0x63/0x90 [ib_uverbs]
[ 2510.404158]  ? _uverbs_alloc+0x63/0x90 [ib_uverbs]
[ 2510.404162]  mlx5_ib_populate_pas+0x53/0x60 [mlx5_ib]
[ 2510.404167]  mlx5_ib_handler_MLX5_IB_METHOD_DEVX_UMEM_REG+0x273/0x3f0 [mlx5_ib]

Fixes: aeae94579c ("IB/mlx5: Add DEVX support for memory registration")
Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Reviewed-by: Artemy Kovalyov <artemyko@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
2019-01-13 09:50:56 +01:00
..
2018-01-08 11:42:23 -07:00
2017-09-25 11:47:24 -04:00
2018-11-13 11:08:43 -08:00
2018-12-17 09:24:36 +01:00
2018-08-16 13:12:00 -06:00