mlx4_core: Reduce number of PD bits to 17

When SRIOV is enabled on the chip (at FW burning time),
the HCA uses only 17 bits for the PD. The remaining 7 high-order bits
are ignored.

Change the allocator to return only 17 bits for the PD.  The MSB 7
bits will be used to encode the slave number for consistency
checking later on in the resource tracker.

Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 4 insertions, 1 deletions

diff --git a/drivers/net/ethernet/mellanox/mlx4/mlx4.h b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
index 69177614666f..51cba262bafc 100644
--- a/drivers/net/ethernet/mellanox/mlx4/mlx4.h
+++ b/drivers/net/ethernet/mellanox/mlx4/mlx4.h
@@ -420,7 +420,7 @@ struct mlx4_mfunc_master_ctx {
         struct work_struct      slave_event_work;
         struct work_struct      slave_flr_event_work;
         spinlock_t              slave_state_lock;
-        u32                     comm_arm_bit_vector[4];
+        __be32                  comm_arm_bit_vector[4];
         struct mlx4_eqe         cmd_eqe;
         struct mlx4_slave_event_eq slave_eq;
         struct mutex            gen_eqe_mutex[MLX4_MFUNC_MAX];
@@ -914,4 +914,7 @@ int mlx4_QUERY_IF_STAT_wrapper(struct mlx4_dev *dev, int slave,
                                struct mlx4_cmd_mailbox *inbox,
                                struct mlx4_cmd_mailbox *outbox,
                                struct mlx4_cmd_info *cmd);
+
+#define NOT_MASKED_PD_BITS 17
+
 #endif /* MLX4_H */