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IB/core: Add creation flags to struct ib_qp_init_attr

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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>
This commit is contained in:
Eli Cohen
2008-04-16 21:09:27 -07:00
committed by Roland Dreier
parent d84e0b28d3
commit b846f25aa2
8 changed files with 26 additions and 0 deletions
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5
include/rdma/ib_verbs.h
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@@ -495,6 +495,10 @@ enum ib_qp_type {
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_init_attr {
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 */
};