mlx4_core: Add proxy and tunnel QPs to the reserved QP area

In addition, pass the proxy and tunnel QP numbers to slaves so the
driver can perform special QP paravirtualization.

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

1 files changed, 12 insertions, 1 deletions

diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index 07aa8232e631..d5c82b7216de 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -693,7 +693,18 @@ static inline int mlx4_is_master(struct mlx4_dev *dev)
 
 static inline int mlx4_is_qp_reserved(struct mlx4_dev *dev, u32 qpn)
 {
-        return (qpn < dev->caps.sqp_start + 8);
+        return (qpn < dev->caps.base_sqpn + 8 +
+                16 * MLX4_MFUNC_MAX * !!mlx4_is_master(dev));
+}
+
+static inline int mlx4_is_guest_proxy(struct mlx4_dev *dev, int slave, u32 qpn)
+{
+        int base = dev->caps.sqp_start + slave * 8;
+
+        if (qpn >= base && qpn < base + 8)
+                return 1;
+
+        return 0;
 }
 
 static inline int mlx4_is_mfunc(struct mlx4_dev *dev)