diff options
| author |   Maor Gottlieb <maorg@mellanox.com> | 2017-01-18 14:10:33 +0200 |
|---|---|---|
| committer |   Doug Ledford <dledford@redhat.com> | 2017-02-14 10:14:25 -0500 |
| commit | c43f1112c068f3b4b20a0a9d461c341d9caeb376 (patch) | |
| tree | c3c1ed21f547741e05fd3034613d42027f73a46c /drivers/infiniband/hw/mlx5/mad.c | |
| parent | IB/mlx5: Verify that Q counters are supported (diff) | |
| download | linux-dev-c43f1112c068f3b4b20a0a9d461c341d9caeb376.tar.xz linux-dev-c43f1112c068f3b4b20a0a9d461c341d9caeb376.zip | |
IB/mlx5: Add additional checks before processing MADs
Check the has_smi bit in vport context and class version of MADs
before allowing MADs processing to take place.
MAD_IFC SMI commands can be executed only if smi bit is set.
Fixes: e126ba97dba9 ('mlx5: Add driver for Mellanox Connect-IB adapters')
Signed-off-by: Maor Gottlieb <maorg@mellanox.com>
Signed-off-by: Parvi Kaustubhi <parvik@mellanox.com>
Reviewed-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/mad.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/mad.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/mad.c b/drivers/infiniband/hw/mlx5/mad.c index 39e58489dcc2..af962e7fdc3a 100644 --- a/drivers/infiniband/hw/mlx5/mad.c +++ b/drivers/infiniband/hw/mlx5/mad.c @@ -42,12 +42,24 @@ enum { MLX5_IB_VENDOR_CLASS2 = 0xa }; +static bool can_do_mad_ifc(struct mlx5_ib_dev *dev, u8 port_num, + struct ib_mad *in_mad) +{ + if (in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_LID_ROUTED && + in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_SUBN_DIRECTED_ROUTE) + return true; + return dev->mdev->port_caps[port_num - 1].has_smi; +} + int mlx5_MAD_IFC(struct mlx5_ib_dev *dev, int ignore_mkey, int ignore_bkey, u8 port, const struct ib_wc *in_wc, const struct ib_grh *in_grh, const void *in_mad, void *response_mad) { u8 op_modifier = 0; + if (!can_do_mad_ifc(dev, port, (struct ib_mad *)in_mad)) + return -EPERM; + /* Key check traps can't be generated unless we have in_wc to * tell us where to send the trap. */ |