RDMA/mlx5: Move all WR logic from qp.c to separate file

[linux-2.6-microblaze.git] / drivers / infiniband / hw / mlx5 / wr.h

diff --git a/drivers/infiniband/hw/mlx5/wr.h b/drivers/infiniband/hw/mlx5/wr.h
new file mode 100644 (file)
index 0000000..4f00575
--- /dev/null
+++ b/drivers/infiniband/hw/mlx5/wr.h
@@ -0,0 +1,76 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2020, Mellanox Technologies inc. All rights reserved.
+ */
+
+#ifndef _MLX5_IB_WR_H
+#define _MLX5_IB_WR_H
+
+#include "mlx5_ib.h"
+
+enum {
+       MLX5_IB_SQ_UMR_INLINE_THRESHOLD = 64,
+};
+
+struct mlx5_wqe_eth_pad {
+       u8 rsvd0[16];
+};
+
+
+/* get_sq_edge - Get the next nearby edge.
+ *
+ * An 'edge' is defined as the first following address after the end
+ * of the fragment or the SQ. Accordingly, during the WQE construction
+ * which repetitively increases the pointer to write the next data, it
+ * simply should check if it gets to an edge.
+ *
+ * @sq - SQ buffer.
+ * @idx - Stride index in the SQ buffer.
+ *
+ * Return:
+ *     The new edge.
+ */
+static inline void *get_sq_edge(struct mlx5_ib_wq *sq, u32 idx)
+{
+       void *fragment_end;
+
+       fragment_end = mlx5_frag_buf_get_wqe
+               (&sq->fbc,
+                mlx5_frag_buf_get_idx_last_contig_stride(&sq->fbc, idx));
+
+       return fragment_end + MLX5_SEND_WQE_BB;
+}
+
+int mlx5_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
+                     const struct ib_send_wr **bad_wr, bool drain);
+int mlx5_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
+                     const struct ib_recv_wr **bad_wr, bool drain);
+
+static inline int mlx5_ib_post_send_nodrain(struct ib_qp *ibqp,
+                                           const struct ib_send_wr *wr,
+                                           const struct ib_send_wr **bad_wr)
+{
+       return mlx5_ib_post_send(ibqp, wr, bad_wr, false);
+}
+
+static inline int mlx5_ib_post_send_drain(struct ib_qp *ibqp,
+                                         const struct ib_send_wr *wr,
+                                         const struct ib_send_wr **bad_wr)
+{
+       return mlx5_ib_post_send(ibqp, wr, bad_wr, true);
+}
+
+static inline int mlx5_ib_post_recv_nodrain(struct ib_qp *ibqp,
+                                           const struct ib_recv_wr *wr,
+                                           const struct ib_recv_wr **bad_wr)
+{
+       return mlx5_ib_post_recv(ibqp, wr, bad_wr, false);
+}
+
+static inline int mlx5_ib_post_recv_drain(struct ib_qp *ibqp,
+                                         const struct ib_recv_wr *wr,
+                                         const struct ib_recv_wr **bad_wr)
+{
+       return mlx5_ib_post_recv(ibqp, wr, bad_wr, true);
+}
+#endif /* _MLX5_IB_WR_H */