mlx4_core: Pass an invalid PCI id number to VFs

Currently, VFs have 0 in their dev->caps.function field.  This is a
valid pci id (usually of the PF).  Instead, pass an invalid PCI id to
the VF via QUERY_FW, so that if the value gets accessed in the VF
driver, we'll catch the problem.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <roland@purestorage.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 6a8f002b8ed3..8eadf0f14cc5 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -534,6 +534,8 @@ struct mlx4_init_port_param {
                 if (((dev)->caps.port_mask[port] == MLX4_PORT_TYPE_IB) || \
                         ((dev)->caps.flags & MLX4_DEV_CAP_FLAG_IBOE))
 
+#define MLX4_INVALID_SLAVE_ID   0xFF
+
 static inline int mlx4_is_master(struct mlx4_dev *dev)
 {
         return dev->flags & MLX4_FLAG_MASTER;