1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/*
* Copyright 2014-2016 Freescale Semiconductor Inc.
* Copyright 2016 NXP
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of Freescale Semiconductor nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __FSL_DPAA2_GLOBAL_H
#define __FSL_DPAA2_GLOBAL_H
#include <linux/types.h>
#include <linux/cpumask.h>
#include "dpaa2-fd.h"
struct dpaa2_dq {
union {
struct common {
u8 verb;
u8 reserved[63];
} common;
struct dq {
u8 verb;
u8 stat;
__le16 seqnum;
__le16 oprid;
u8 reserved;
u8 tok;
__le32 fqid;
u32 reserved2;
__le32 fq_byte_cnt;
__le32 fq_frm_cnt;
__le64 fqd_ctx;
u8 fd[32];
} dq;
struct scn {
u8 verb;
u8 stat;
u8 state;
u8 reserved;
__le32 rid_tok;
__le64 ctx;
} scn;
};
};
/* Parsing frame dequeue results */
/* FQ empty */
#define DPAA2_DQ_STAT_FQEMPTY 0x80
/* FQ held active */
#define DPAA2_DQ_STAT_HELDACTIVE 0x40
/* FQ force eligible */
#define DPAA2_DQ_STAT_FORCEELIGIBLE 0x20
/* valid frame */
#define DPAA2_DQ_STAT_VALIDFRAME 0x10
/* FQ ODP enable */
#define DPAA2_DQ_STAT_ODPVALID 0x04
/* volatile dequeue */
#define DPAA2_DQ_STAT_VOLATILE 0x02
/* volatile dequeue command is expired */
#define DPAA2_DQ_STAT_EXPIRED 0x01
#define DQ_FQID_MASK 0x00FFFFFF
#define DQ_FRAME_COUNT_MASK 0x00FFFFFF
/**
* dpaa2_dq_flags() - Get the stat field of dequeue response
* @dq: the dequeue result.
*/
static inline u32 dpaa2_dq_flags(const struct dpaa2_dq *dq)
{
return dq->dq.stat;
}
/**
* dpaa2_dq_is_pull() - Check whether the dq response is from a pull
* command.
* @dq: the dequeue result
*
* Return 1 for volatile(pull) dequeue, 0 for static dequeue.
*/
static inline int dpaa2_dq_is_pull(const struct dpaa2_dq *dq)
{
return (int)(dpaa2_dq_flags(dq) & DPAA2_DQ_STAT_VOLATILE);
}
/**
* dpaa2_dq_is_pull_complete() - Check whether the pull command is completed.
* @dq: the dequeue result
*
* Return boolean.
*/
static inline bool dpaa2_dq_is_pull_complete(const struct dpaa2_dq *dq)
{
return !!(dpaa2_dq_flags(dq) & DPAA2_DQ_STAT_EXPIRED);
}
/**
* dpaa2_dq_seqnum() - Get the seqnum field in dequeue response
* @dq: the dequeue result
*
* seqnum is valid only if VALIDFRAME flag is TRUE
*
* Return seqnum.
*/
static inline u16 dpaa2_dq_seqnum(const struct dpaa2_dq *dq)
{
return le16_to_cpu(dq->dq.seqnum);
}
/**
* dpaa2_dq_odpid() - Get the odpid field in dequeue response
* @dq: the dequeue result
*
* odpid is valid only if ODPVALID flag is TRUE.
*
* Return odpid.
*/
static inline u16 dpaa2_dq_odpid(const struct dpaa2_dq *dq)
{
return le16_to_cpu(dq->dq.oprid);
}
/**
* dpaa2_dq_fqid() - Get the fqid in dequeue response
* @dq: the dequeue result
*
* Return fqid.
*/
static inline u32 dpaa2_dq_fqid(const struct dpaa2_dq *dq)
{
return le32_to_cpu(dq->dq.fqid) & DQ_FQID_MASK;
}
/**
* dpaa2_dq_byte_count() - Get the byte count in dequeue response
* @dq: the dequeue result
*
* Return the byte count remaining in the FQ.
*/
static inline u32 dpaa2_dq_byte_count(const struct dpaa2_dq *dq)
{
return le32_to_cpu(dq->dq.fq_byte_cnt);
}
/**
* dpaa2_dq_frame_count() - Get the frame count in dequeue response
* @dq: the dequeue result
*
* Return the frame count remaining in the FQ.
*/
static inline u32 dpaa2_dq_frame_count(const struct dpaa2_dq *dq)
{
return le32_to_cpu(dq->dq.fq_frm_cnt) & DQ_FRAME_COUNT_MASK;
}
/**
* dpaa2_dq_fd_ctx() - Get the frame queue context in dequeue response
* @dq: the dequeue result
*
* Return the frame queue context.
*/
static inline u64 dpaa2_dq_fqd_ctx(const struct dpaa2_dq *dq)
{
return le64_to_cpu(dq->dq.fqd_ctx);
}
/**
* dpaa2_dq_fd() - Get the frame descriptor in dequeue response
* @dq: the dequeue result
*
* Return the frame descriptor.
*/
static inline const struct dpaa2_fd *dpaa2_dq_fd(const struct dpaa2_dq *dq)
{
return (const struct dpaa2_fd *)&dq->dq.fd[0];
}
#endif /* __FSL_DPAA2_GLOBAL_H */
|
