To commit ?? ("IB/hfi1: Move receive work queue struct into uapi
directory")
Signed-off-by: "Kamenee Arumugam" <kamenee.arumugam@xxxxxxxxx>
---
kernel-headers/rdma/rvt-abi.h | 28 ++++++++++++++++++++++++++++
1 files changed, 28 insertions(+), 0 deletions(-)
diff --git a/kernel-headers/rdma/rvt-abi.h b/kernel-headers/rdma/rvt-abi.h
index c30f2fe..2e14075 100644
--- a/kernel-headers/rdma/rvt-abi.h
+++ b/kernel-headers/rdma/rvt-abi.h
@@ -10,6 +10,7 @@
#include <linux/types.h>
#include <rdma/ib_user_verbs.h>
+#include <infiniband/verbs.h>
#ifndef RDMA_ATOMIC_UAPI
#define RDMA_ATOMIC_UAPI(_type, _name) _type _name
#endif
@@ -28,4 +29,31 @@ struct rvt_cq_wc {
struct ib_uverbs_wc uqueue[0];
};
+/*
+ * Receive work request queue entry.
+ * The size of the sg_list is determined when the QP (or SRQ) is created
+ * and stored in qp->r_rq.max_sge (or srq->rq.max_sge).
+ */
+struct rvt_rwqe {
+ __u64 wr_id;
+ __u8 num_sge;
+ __u8 padding[7];
+ struct ibv_sge sg_list[0];
+};
+
+/*
+ * This structure is used to contain the head pointer, tail pointer,
+ * and receive work queue entries as a single memory allocation so
+ * it can be mmap'ed into user space.
+ * Note that the wq array elements are variable size so you can't
+ * just index into the array to get the N'th element;
+ * use get_rwqe_ptr() instead.
+ */
+struct rvt_rwq {
+ /* new work requests posted to the head */
+ RDMA_ATOMIC_UAPI(__u32, head);
+ /* receives pull requests from here. */
+ RDMA_ATOMIC_UAPI(__u32, tail);
+ struct rvt_rwqe wq[0];
+};
#endif /* RVT_ABI_USER_H */
