IB/ehca: add Shared Receive Queue support

Support SRQs on eHCA2. Since an SRQ is a QP for eHCA2, a lot of code
(structures, create, destroy, post_recv) can be shared between QP and SRQ.

Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 15 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/ehca/ehca_iverbs.h b/drivers/infiniband/hw/ehca/ehca_iverbs.h
index 37e7fe0908cf..fd84a804814c 100644
--- a/drivers/infiniband/hw/ehca/ehca_iverbs.h
+++ b/drivers/infiniband/hw/ehca/ehca_iverbs.h
@@ -154,6 +154,21 @@ int ehca_post_send(struct ib_qp *qp, struct ib_send_wr *send_wr,
 int ehca_post_recv(struct ib_qp *qp, struct ib_recv_wr *recv_wr,
                    struct ib_recv_wr **bad_recv_wr);
 
+int ehca_post_srq_recv(struct ib_srq *srq,
+                       struct ib_recv_wr *recv_wr,
+                       struct ib_recv_wr **bad_recv_wr);
+
+struct ib_srq *ehca_create_srq(struct ib_pd *pd,
+                               struct ib_srq_init_attr *init_attr,
+                               struct ib_udata *udata);
+
+int ehca_modify_srq(struct ib_srq *srq, struct ib_srq_attr *attr,
+                    enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
+
+int ehca_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
+
+int ehca_destroy_srq(struct ib_srq *srq);
+
 u64 ehca_define_sqp(struct ehca_shca *shca, struct ehca_qp *ibqp,
                     struct ib_qp_init_attr *qp_init_attr);