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
|
/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright 2019 NXP */
#ifndef __FSL_DPDMAI_H
#define __FSL_DPDMAI_H
/* DPDMAI Version */
#define DPDMAI_VER_MAJOR 2
#define DPDMAI_VER_MINOR 2
#define DPDMAI_CMD_BASE_VERSION 0
#define DPDMAI_CMD_ID_OFFSET 4
#define DPDMAI_CMDID_FORMAT(x) (((x) << DPDMAI_CMD_ID_OFFSET) | \
DPDMAI_CMD_BASE_VERSION)
/* Command IDs */
#define DPDMAI_CMDID_CLOSE DPDMAI_CMDID_FORMAT(0x800)
#define DPDMAI_CMDID_OPEN DPDMAI_CMDID_FORMAT(0x80E)
#define DPDMAI_CMDID_CREATE DPDMAI_CMDID_FORMAT(0x90E)
#define DPDMAI_CMDID_ENABLE DPDMAI_CMDID_FORMAT(0x002)
#define DPDMAI_CMDID_DISABLE DPDMAI_CMDID_FORMAT(0x003)
#define DPDMAI_CMDID_GET_ATTR DPDMAI_CMDID_FORMAT(0x004)
#define DPDMAI_CMDID_RESET DPDMAI_CMDID_FORMAT(0x005)
#define DPDMAI_CMDID_IS_ENABLED DPDMAI_CMDID_FORMAT(0x006)
#define DPDMAI_CMDID_SET_IRQ DPDMAI_CMDID_FORMAT(0x010)
#define DPDMAI_CMDID_GET_IRQ DPDMAI_CMDID_FORMAT(0x011)
#define DPDMAI_CMDID_SET_IRQ_ENABLE DPDMAI_CMDID_FORMAT(0x012)
#define DPDMAI_CMDID_GET_IRQ_ENABLE DPDMAI_CMDID_FORMAT(0x013)
#define DPDMAI_CMDID_SET_IRQ_MASK DPDMAI_CMDID_FORMAT(0x014)
#define DPDMAI_CMDID_GET_IRQ_MASK DPDMAI_CMDID_FORMAT(0x015)
#define DPDMAI_CMDID_GET_IRQ_STATUS DPDMAI_CMDID_FORMAT(0x016)
#define DPDMAI_CMDID_CLEAR_IRQ_STATUS DPDMAI_CMDID_FORMAT(0x017)
#define DPDMAI_CMDID_SET_RX_QUEUE DPDMAI_CMDID_FORMAT(0x1A0)
#define DPDMAI_CMDID_GET_RX_QUEUE DPDMAI_CMDID_FORMAT(0x1A1)
#define DPDMAI_CMDID_GET_TX_QUEUE DPDMAI_CMDID_FORMAT(0x1A2)
#define MC_CMD_HDR_TOKEN_O 32 /* Token field offset */
#define MC_CMD_HDR_TOKEN_S 16 /* Token field size */
#define MAKE_UMASK64(_width) \
((u64)((_width) < 64 ? ((u64)1 << (_width)) - 1 : (u64)-1))
/* Data Path DMA Interface API
* Contains initialization APIs and runtime control APIs for DPDMAI
*/
/**
* Maximum number of Tx/Rx priorities per DPDMAI object
*/
#define DPDMAI_PRIO_NUM 2
/* DPDMAI queue modification options */
/**
* Select to modify the user's context associated with the queue
*/
#define DPDMAI_QUEUE_OPT_USER_CTX 0x1
/**
* Select to modify the queue's destination
*/
#define DPDMAI_QUEUE_OPT_DEST 0x2
/**
* struct dpdmai_cfg - Structure representing DPDMAI configuration
* @priorities: Priorities for the DMA hardware processing; valid priorities are
* configured with values 1-8; the entry following last valid entry
* should be configured with 0
*/
struct dpdmai_cfg {
u8 priorities[DPDMAI_PRIO_NUM];
};
/**
* struct dpdmai_attr - Structure representing DPDMAI attributes
* @id: DPDMAI object ID
* @version: DPDMAI version
* @num_of_priorities: number of priorities
*/
struct dpdmai_attr {
int id;
/**
* struct version - DPDMAI version
* @major: DPDMAI major version
* @minor: DPDMAI minor version
*/
struct {
u16 major;
u16 minor;
} version;
u8 num_of_priorities;
};
/**
* enum dpdmai_dest - DPDMAI destination types
* @DPDMAI_DEST_NONE: Unassigned destination; The queue is set in parked mode
* and does not generate FQDAN notifications; user is expected to dequeue
* from the queue based on polling or other user-defined method
* @DPDMAI_DEST_DPIO: The queue is set in schedule mode and generates FQDAN
* notifications to the specified DPIO; user is expected to dequeue
* from the queue only after notification is received
* @DPDMAI_DEST_DPCON: The queue is set in schedule mode and does not generate
* FQDAN notifications, but is connected to the specified DPCON object;
* user is expected to dequeue from the DPCON channel
*/
enum dpdmai_dest {
DPDMAI_DEST_NONE = 0,
DPDMAI_DEST_DPIO = 1,
DPDMAI_DEST_DPCON = 2
};
/**
* struct dpdmai_dest_cfg - Structure representing DPDMAI destination parameters
* @dest_type: Destination type
* @dest_id: Either DPIO ID or DPCON ID, depending on the destination type
* @priority: Priority selection within the DPIO or DPCON channel; valid values
* are 0-1 or 0-7, depending on the number of priorities in that
* channel; not relevant for 'DPDMAI_DEST_NONE' option
*/
struct dpdmai_dest_cfg {
enum dpdmai_dest dest_type;
int dest_id;
u8 priority;
};
/**
* struct dpdmai_rx_queue_cfg - DPDMAI RX queue configuration
* @options: Flags representing the suggested modifications to the queue;
* Use any combination of 'DPDMAI_QUEUE_OPT_<X>' flags
* @user_ctx: User context value provided in the frame descriptor of each
* dequeued frame;
* valid only if 'DPDMAI_QUEUE_OPT_USER_CTX' is contained in 'options'
* @dest_cfg: Queue destination parameters;
* valid only if 'DPDMAI_QUEUE_OPT_DEST' is contained in 'options'
*/
struct dpdmai_rx_queue_cfg {
struct dpdmai_dest_cfg dest_cfg;
u32 options;
u64 user_ctx;
};
/**
* struct dpdmai_rx_queue_attr - Structure representing attributes of Rx queues
* @user_ctx: User context value provided in the frame descriptor of each
* dequeued frame
* @dest_cfg: Queue destination configuration
* @fqid: Virtual FQID value to be used for dequeue operations
*/
struct dpdmai_rx_queue_attr {
struct dpdmai_dest_cfg dest_cfg;
u64 user_ctx;
u32 fqid;
};
int dpdmai_open(struct fsl_mc_io *mc_io, u32 cmd_flags,
int dpdmai_id, u16 *token);
int dpdmai_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
int dpdmai_create(struct fsl_mc_io *mc_io, u32 cmd_flags,
const struct dpdmai_cfg *cfg, u16 *token);
int dpdmai_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
int dpdmai_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
int dpdmai_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token);
int dpdmai_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags,
u16 token, struct dpdmai_attr *attr);
int dpdmai_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u8 priority, const struct dpdmai_rx_queue_cfg *cfg);
int dpdmai_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
u8 priority, struct dpdmai_rx_queue_attr *attr);
int dpdmai_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags,
u16 token, u8 priority, u32 *fqid);
#endif /* __FSL_DPDMAI_H */
|