IB/core: Add creation flags to struct ib_qp_init_attr
Add a create_flags member to struct ib_qp_init_attr that will allow a
kernel verbs consumer to create a pass special flags when creating a QP.
Add a flag value for telling low-level drivers that a QP will be used
for IPoIB UD LSO. The create_flags member will also be useful for XRC
and ehca low-latency QP support.
Since no create_flags handling is implemented yet, add code to all
low-level drivers to return -EINVAL if create_flags is non-zero.
Signed-off-by: Eli Cohen <eli@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 40ff512..c3299be 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -495,6 +495,10 @@
IB_QPT_RAW_ETY
};
+enum ib_qp_create_flags {
+ IB_QP_CREATE_IPOIB_UD_LSO = 1 << 0,
+};
+
struct ib_qp_init_attr {
void (*event_handler)(struct ib_event *, void *);
void *qp_context;
@@ -504,6 +508,7 @@
struct ib_qp_cap cap;
enum ib_sig_type sq_sig_type;
enum ib_qp_type qp_type;
+ enum ib_qp_create_flags create_flags;
u8 port_num; /* special QP types only */
};