1. Slave may not set the IS_SM capability for the port.
2. No DEV_MGR in multifunc mode.

Signed-off-by: Jack Morgenstein <[email protected]>
---
 drivers/net/ethernet/mellanox/mlx4/port.c |   10 ++++++++++
 include/linux/mlx4/device.h               |    5 +++++
 2 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx4/port.c 
b/drivers/net/ethernet/mellanox/mlx4/port.c
index 90dc475..43c2fce 100644
--- a/drivers/net/ethernet/mellanox/mlx4/port.c
+++ b/drivers/net/ethernet/mellanox/mlx4/port.c
@@ -683,6 +683,16 @@ static int mlx4_common_set_port(struct mlx4_dev *dev, int 
slave, u32 in_mod,
                new_cap_mask = ((__be32 *) inbox->buf)[1];
        }
 
+       /* slave may not set the IS_SM capability for the port */
+       if (slave != dev->caps.function &&
+           (be32_to_cpu(new_cap_mask) & MLX4_PORT_CAP_IS_SM))
+               return -EINVAL;
+
+       /* NO DEV_MGR in multifunc mode */
+       if (mlx4_is_mfunc(dev) &&
+           (be32_to_cpu(new_cap_mask) & MLX4_PORT_CAP_DEV_MGMT_SUP))
+               return -EINVAL;
+
        agg_cap_mask = 0;
        slave_cap_mask =
                priv->mfunc.master.slave_state[slave].ib_cap_mask[port];
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 8fae22f..5127b68 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -53,6 +53,11 @@ enum {
 };
 
 enum {
+       MLX4_PORT_CAP_IS_SM     = 1 << 1,
+       MLX4_PORT_CAP_DEV_MGMT_SUP = 1 << 19,
+};
+
+enum {
        MLX4_MAX_PORTS          = 2,
        MLX4_MAX_PORT_PKEYS     = 128
 };
-- 
1.7.1

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