mlx4: Fixing bad size of event queue buffer

We should reduce the number of reserved completion queues from the total
number of entries. Since the queue size is power of two, not reducing the
reserved entries, caused a double queue size, which may lead to allocation
failures in some cases.

Signed-off-by: Yevgeny Petrilin <yevgenyp@mellanox.co.il>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/mlx4/eq.c b/drivers/net/mlx4/eq.c
index 506cfd0372ecf786872d07f1f2e2e85c910f4bd0..1ad1f6029af80a3fd84dd0071fbdefb57de2892a 100644 (file)
--- a/drivers/net/mlx4/eq.c
+++ b/drivers/net/mlx4/eq.c
@@ -603,7 +603,9 @@ int mlx4_init_eq_table(struct mlx4_dev *dev)
        }
 
        for (i = 0; i < dev->caps.num_comp_vectors; ++i) {
-               err = mlx4_create_eq(dev, dev->caps.num_cqs + MLX4_NUM_SPARE_EQE,
+               err = mlx4_create_eq(dev, dev->caps.num_cqs -
+                                         dev->caps.reserved_cqs +
+                                         MLX4_NUM_SPARE_EQE,
                                     (dev->flags & MLX4_FLAG_MSI_X) ? i : 0,
                                     &priv->eq_table.eq[i]);
                if (err) {