RDMA/vmw_pvrdma: Add shared receive queue support

Add the required functions needed to support SRQs. Currently, kernel
clients are not supported. SRQs will only be available in userspace.

Reviewed-by: Adit Ranadive <aditr@vmware.com>
Reviewed-by: Aditya Sarwade <asarwade@vmware.com>
Reviewed-by: Jorgen Hansen <jhansen@vmware.com>
Reviewed-by: Nitish Bhat <bnitish@vmware.com>
Signed-off-by: Bryan Tan <bryantan@vmware.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
index 002a9b066e70..b7b25728a7e5 100644
--- a/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
+++ b/drivers/infiniband/hw/vmw_pvrdma/pvrdma_verbs.h
@@ -324,6 +324,13 @@ enum pvrdma_mw_type {
 	PVRDMA_MW_TYPE_2 = 2,
 };
 
+struct pvrdma_srq_attr {
+	u32			max_wr;
+	u32			max_sge;
+	u32			srq_limit;
+	u32			reserved;
+};
+
 struct pvrdma_qp_attr {
 	enum pvrdma_qp_state	qp_state;
 	enum pvrdma_qp_state	cur_qp_state;
@@ -420,6 +427,17 @@ int pvrdma_req_notify_cq(struct ib_cq *cq, enum ib_cq_notify_flags flags);
 struct ib_ah *pvrdma_create_ah(struct ib_pd *pd, struct rdma_ah_attr *ah_attr,
 			       struct ib_udata *udata);
 int pvrdma_destroy_ah(struct ib_ah *ah);
+
+struct ib_srq *pvrdma_create_srq(struct ib_pd *pd,
+				 struct ib_srq_init_attr *init_attr,
+				 struct ib_udata *udata);
+int pvrdma_modify_srq(struct ib_srq *ibsrq, struct ib_srq_attr *attr,
+		      enum ib_srq_attr_mask attr_mask, struct ib_udata *udata);
+int pvrdma_query_srq(struct ib_srq *srq, struct ib_srq_attr *srq_attr);
+int pvrdma_destroy_srq(struct ib_srq *srq);
+int pvrdma_post_srq_recv(struct ib_srq *ibsrq, struct ib_recv_wr *wr,
+			 struct ib_recv_wr **bad_wr);
+
 struct ib_qp *pvrdma_create_qp(struct ib_pd *pd,
 			       struct ib_qp_init_attr *init_attr,
 			       struct ib_udata *udata);