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RDMA/cma: Pass QP type into rdma_create_id()

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The RDMA CM currently infers the QP type from the port space selected
by the user.  In the future (eg with RDMA_PS_IB or XRC), there may not
be a 1-1 correspondence between port space and QP type.  For netlink
export of RDMA CM state, we want to export the QP type to userspace,
so it is cleaner to explicitly associate a QP type to an ID.

Modify rdma_create_id() to allow the user to specify the QP type, and
use it to make our selections of datagram versus connected mode.

Signed-off-by: Sean Hefty <[email protected]>
Signed-off-by: Roland Dreier <[email protected]>
This commit is contained in:
Sean Hefty 2010-04-01 17:08:41 +00:00 • committed by Roland Dreier
commit b26f9b9949
12 changed files with 55 additions and 33 deletions
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5
include/rdma/rdma_cm.h
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@ -144,6 +144,7 @@ struct rdma_cm_id {
rdma_cm_event_handler event_handler;
struct rdma_route route;
enum rdma_port_space ps;
enum ib_qp_type qp_type;
u8 port_num;
};
@ -154,9 +155,11 @@ struct rdma_cm_id {
* returned rdma_id.
* @context: User specified context associated with the id.
* @ps: RDMA port space.
* @qp_type: type of queue pair associated with the id.
*/
struct rdma_cm_id *rdma_create_id(rdma_cm_event_handler event_handler,
void *context, enum rdma_port_space ps);
void *context, enum rdma_port_space ps,
enum ib_qp_type qp_type);
/**
* rdma_destroy_id - Destroys an RDMA identifier.