1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2 /*
3 * Copyright (c) 2020, Mellanox Technologies inc. All rights reserved.
4 */
5
6 #ifndef _MLX5_IB_WR_H
7 #define _MLX5_IB_WR_H
8
9 #include "mlx5_ib.h"
10
11 enum {
12 MLX5_IB_SQ_UMR_INLINE_THRESHOLD = 64,
13 };
14
15 struct mlx5_wqe_eth_pad {
16 u8 rsvd0[16];
17 };
18
19
20 /* get_sq_edge - Get the next nearby edge.
21 *
22 * An 'edge' is defined as the first following address after the end
23 * of the fragment or the SQ. Accordingly, during the WQE construction
24 * which repetitively increases the pointer to write the next data, it
25 * simply should check if it gets to an edge.
26 *
27 * @sq - SQ buffer.
28 * @idx - Stride index in the SQ buffer.
29 *
30 * Return:
31 * The new edge.
32 */
get_sq_edge(struct mlx5_ib_wq * sq,u32 idx)33 static inline void *get_sq_edge(struct mlx5_ib_wq *sq, u32 idx)
34 {
35 void *fragment_end;
36
37 fragment_end = mlx5_frag_buf_get_wqe
38 (&sq->fbc,
39 mlx5_frag_buf_get_idx_last_contig_stride(&sq->fbc, idx));
40
41 return fragment_end + MLX5_SEND_WQE_BB;
42 }
43
44 int mlx5_ib_post_send(struct ib_qp *ibqp, const struct ib_send_wr *wr,
45 const struct ib_send_wr **bad_wr, bool drain);
46 int mlx5_ib_post_recv(struct ib_qp *ibqp, const struct ib_recv_wr *wr,
47 const struct ib_recv_wr **bad_wr, bool drain);
48
mlx5_ib_post_send_nodrain(struct ib_qp * ibqp,const struct ib_send_wr * wr,const struct ib_send_wr ** bad_wr)49 static inline int mlx5_ib_post_send_nodrain(struct ib_qp *ibqp,
50 const struct ib_send_wr *wr,
51 const struct ib_send_wr **bad_wr)
52 {
53 return mlx5_ib_post_send(ibqp, wr, bad_wr, false);
54 }
55
mlx5_ib_post_send_drain(struct ib_qp * ibqp,const struct ib_send_wr * wr,const struct ib_send_wr ** bad_wr)56 static inline int mlx5_ib_post_send_drain(struct ib_qp *ibqp,
57 const struct ib_send_wr *wr,
58 const struct ib_send_wr **bad_wr)
59 {
60 return mlx5_ib_post_send(ibqp, wr, bad_wr, true);
61 }
62
mlx5_ib_post_recv_nodrain(struct ib_qp * ibqp,const struct ib_recv_wr * wr,const struct ib_recv_wr ** bad_wr)63 static inline int mlx5_ib_post_recv_nodrain(struct ib_qp *ibqp,
64 const struct ib_recv_wr *wr,
65 const struct ib_recv_wr **bad_wr)
66 {
67 return mlx5_ib_post_recv(ibqp, wr, bad_wr, false);
68 }
69
mlx5_ib_post_recv_drain(struct ib_qp * ibqp,const struct ib_recv_wr * wr,const struct ib_recv_wr ** bad_wr)70 static inline int mlx5_ib_post_recv_drain(struct ib_qp *ibqp,
71 const struct ib_recv_wr *wr,
72 const struct ib_recv_wr **bad_wr)
73 {
74 return mlx5_ib_post_recv(ibqp, wr, bad_wr, true);
75 }
76 #endif /* _MLX5_IB_WR_H */
77