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IB/mlx5: Add additional checks before processing MADs

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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: e126ba97db ('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>
This commit is contained in:
Maor Gottlieb
2017-01-18 14:10:33 +02:00
committed by Doug Ledford
parent 45bded2c21
commit c43f1112c0
3 changed files with 46 additions and 0 deletions
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12
drivers/infiniband/hw/mlx5/mad.c
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@@ -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.
*/