1/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0-or-later */
2/*
3 * Copyright 2008 - 2015 Freescale Semiconductor Inc.
4 */
5
6#ifndef __FM_SP_H
7#define __FM_SP_H
8
9#include "fman.h"
10#include <linux/types.h>
11
12#define ILLEGAL_BASE (~0)
13
14/* defaults */
15#define DFLT_FM_SP_BUFFER_PREFIX_CONTEXT_DATA_ALIGN 64
16
17/* Registers bit fields */
18#define FMAN_SP_EXT_BUF_POOL_EN_COUNTER 0x40000000
19#define FMAN_SP_EXT_BUF_POOL_VALID 0x80000000
20#define FMAN_SP_EXT_BUF_POOL_BACKUP 0x20000000
21#define FMAN_SP_DMA_ATTR_WRITE_OPTIMIZE 0x00100000
22#define FMAN_SP_SG_DISABLE 0x80000000
23
24/* shifts */
25#define FMAN_SP_EXT_BUF_MARG_START_SHIFT 16
26#define FMAN_SP_DMA_ATTR_SWP_SHIFT 30
27#define FMAN_SP_IC_TO_EXT_SHIFT 16
28#define FMAN_SP_IC_FROM_INT_SHIFT 8
29
30/* structure for defining internal context copying */
31struct fman_sp_int_context_data_copy {
32 /* < Offset in External buffer to which internal
33 * context is copied to (Rx) or taken from (Tx, Op).
34 */
35 u16 ext_buf_offset;
36 /* Offset within internal context to copy from
37 * (Rx) or to copy to (Tx, Op).
38 */
39 u8 int_context_offset;
40 /* Internal offset size to be copied */
41 u16 size;
42};
43
44/* struct for defining external buffer margins */
45struct fman_sp_buf_margins {
46 /* Number of bytes to be left at the beginning
47 * of the external buffer (must be divisible by 16)
48 */
49 u16 start_margins;
50 /* number of bytes to be left at the end
51 * of the external buffer(must be divisible by 16)
52 */
53 u16 end_margins;
54};
55
56struct fman_sp_buffer_offsets {
57 u32 data_offset;
58 u32 prs_result_offset;
59 u32 time_stamp_offset;
60 u32 hash_result_offset;
61};
62
63int fman_sp_build_buffer_struct(struct fman_sp_int_context_data_copy
64 *int_context_data_copy,
65 struct fman_buffer_prefix_content
66 *buffer_prefix_content,
67 struct fman_sp_buf_margins *buf_margins,
68 struct fman_sp_buffer_offsets
69 *buffer_offsets,
70 u8 *internal_buf_offset);
71
72void fman_sp_set_buf_pools_in_asc_order_of_buf_sizes(struct fman_ext_pools
73 *fm_ext_pools,
74 u8 *ordered_array,
75 u16 *sizes_array);
76
77#endif /* __FM_SP_H */
78

source code of linux/drivers/net/ethernet/freescale/fman/fman_sp.h