IB/core: Reserve bits in enum ib_qp_create_flags for low-level driver use
authorJack Morgenstein <jackm@dev.mellanox.co.il>
Fri, 3 Aug 2012 08:40:37 +0000 (08:40 +0000)
committerRoland Dreier <roland@purestorage.com>
Mon, 1 Oct 2012 03:33:28 +0000 (20:33 -0700)
Reserve bits 26-31 for internal use by low-level drivers. Two such
bits are used in the mlx4_b driver SR-IOV implementation.

These enum additions guarantee that the core layer will never use
these bits, so that low level drivers may safely make use of them.

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

index 07996af8265a524b60a356faa4f59cf5cf712de1..46bc045bbe1596b5273f9225a5b3cf74d097fd86 100644 (file)
@@ -614,6 +614,9 @@ enum ib_qp_type {
 enum ib_qp_create_flags {
        IB_QP_CREATE_IPOIB_UD_LSO               = 1 << 0,
        IB_QP_CREATE_BLOCK_MULTICAST_LOOPBACK   = 1 << 1,
+       /* reserve bits 26-31 for low level drivers' internal use */
+       IB_QP_CREATE_RESERVED_START             = 1 << 26,
+       IB_QP_CREATE_RESERVED_END               = 1 << 31,
 };
 
 struct ib_qp_init_attr {