2 * Copyright (C) 2013-2016 Freescale Semiconductor
5 * SPDX-License-Identifier: GPL-2.0+
12 #define DPIO_VER_MAJOR 4
13 #define DPIO_VER_MINOR 2
16 #define DPIO_CMDID_CLOSE 0x8001
17 #define DPIO_CMDID_OPEN 0x8031
18 #define DPIO_CMDID_CREATE 0x9031
19 #define DPIO_CMDID_DESTROY 0x9831
20 #define DPIO_CMDID_GET_API_VERSION 0xa031
22 #define DPIO_CMDID_ENABLE 0x0021
23 #define DPIO_CMDID_DISABLE 0x0031
24 #define DPIO_CMDID_GET_ATTR 0x0041
25 #define DPIO_CMDID_RESET 0x0051
27 /* cmd, param, offset, width, type, arg_name */
28 #define DPIO_CMD_OPEN(cmd, dpio_id) \
29 MC_CMD_OP(cmd, 0, 0, 32, int, dpio_id)
31 /* cmd, param, offset, width, type, arg_name */
32 #define DPIO_CMD_CREATE(cmd, cfg) \
34 MC_CMD_OP(cmd, 0, 16, 2, enum dpio_channel_mode, \
36 MC_CMD_OP(cmd, 0, 32, 8, uint8_t, cfg->num_priorities);\
39 /* cmd, param, offset, width, type, arg_name */
40 #define DPIO_RSP_GET_ATTR(cmd, attr) \
42 MC_RSP_OP(cmd, 0, 0, 32, int, attr->id);\
43 MC_RSP_OP(cmd, 0, 32, 16, uint16_t, attr->qbman_portal_id);\
44 MC_RSP_OP(cmd, 0, 48, 8, uint8_t, attr->num_priorities);\
45 MC_RSP_OP(cmd, 0, 56, 4, enum dpio_channel_mode, attr->channel_mode);\
46 MC_RSP_OP(cmd, 1, 0, 64, uint64_t, attr->qbman_portal_ce_offset);\
47 MC_RSP_OP(cmd, 2, 0, 64, uint64_t, attr->qbman_portal_ci_offset);\
48 MC_RSP_OP(cmd, 3, 32, 32, uint32_t, attr->qbman_version);\
51 /* Data Path I/O Portal API
52 * Contains initialization APIs and runtime control APIs for DPIO
58 * dpio_open() - Open a control session for the specified object
59 * @mc_io: Pointer to MC portal's I/O object
60 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
61 * @dpio_id: DPIO unique ID
62 * @token: Returned token; use in subsequent API calls
64 * This function can be used to open a control session for an
65 * already created object; an object may have been declared in
66 * the DPL or by calling the dpio_create() function.
67 * This function returns a unique authentication token,
68 * associated with the specific object ID and the specific MC
69 * portal; this token must be used in all subsequent commands for
70 * this specific object.
72 * Return: '0' on Success; Error code otherwise.
74 int dpio_open(struct fsl_mc_io *mc_io,
80 * dpio_close() - Close the control session of the object
81 * @mc_io: Pointer to MC portal's I/O object
82 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
83 * @token: Token of DPIO object
85 * Return: '0' on Success; Error code otherwise.
87 int dpio_close(struct fsl_mc_io *mc_io,
92 * enum dpio_channel_mode - DPIO notification channel mode
93 * @DPIO_NO_CHANNEL: No support for notification channel
94 * @DPIO_LOCAL_CHANNEL: Notifications on data availability can be received by a
95 * dedicated channel in the DPIO; user should point the queue's
96 * destination in the relevant interface to this DPIO
98 enum dpio_channel_mode {
100 DPIO_LOCAL_CHANNEL = 1,
104 * struct dpio_cfg - Structure representing DPIO configuration
105 * @channel_mode: Notification channel mode
106 * @num_priorities: Number of priorities for the notification channel (1-8);
107 * relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
110 enum dpio_channel_mode channel_mode;
111 uint8_t num_priorities;
115 * dpio_create() - Create the DPIO object.
116 * @mc_io: Pointer to MC portal's I/O object
117 * @token: Authentication token.
118 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
119 * @cfg: Configuration structure
120 * @obj_id: Returned obj_id; use in subsequent API calls
122 * Create the DPIO object, allocate required resources and
123 * perform required initialization.
125 * The object can be created either by declaring it in the
126 * DPL file, or by calling this function.
128 * This function returns a unique authentication token,
129 * associated with the specific object ID and the specific MC
130 * portal; this token must be used in all subsequent calls to
131 * this specific object. For objects that are created using the
132 * DPL file, call dpio_open() function to get an authentication
135 * Return: '0' on Success; Error code otherwise.
137 int dpio_create(struct fsl_mc_io *mc_io,
140 const struct dpio_cfg *cfg,
144 * dpio_destroy() - Destroy the DPIO object and release all its resources.
145 * @mc_io: Pointer to MC portal's I/O object
146 * @token: Authentication token.
147 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
148 * @obj_id: Object ID of DPIO
150 * Return: '0' on Success; Error code otherwise
152 int dpio_destroy(struct fsl_mc_io *mc_io,
158 * dpio_enable() - Enable the DPIO, allow I/O portal operations.
159 * @mc_io: Pointer to MC portal's I/O object
160 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
161 * @token: Token of DPIO object
163 * Return: '0' on Success; Error code otherwise
165 int dpio_enable(struct fsl_mc_io *mc_io,
170 * dpio_disable() - Disable the DPIO, stop any I/O portal operation.
171 * @mc_io: Pointer to MC portal's I/O object
172 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
173 * @token: Token of DPIO object
175 * Return: '0' on Success; Error code otherwise
177 int dpio_disable(struct fsl_mc_io *mc_io,
182 * dpio_reset() - Reset the DPIO, returns the object to initial state.
183 * @mc_io: Pointer to MC portal's I/O object
184 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
185 * @token: Token of DPIO object
187 * Return: '0' on Success; Error code otherwise.
189 int dpio_reset(struct fsl_mc_io *mc_io,
194 * struct dpio_attr - Structure representing DPIO attributes
195 * @id: DPIO object ID
196 * @version: DPIO version
197 * @qbman_portal_ce_offset: offset of the software portal cache-enabled area
198 * @qbman_portal_ci_offset: offset of the software portal cache-inhibited area
199 * @qbman_portal_id: Software portal ID
200 * @channel_mode: Notification channel mode
201 * @num_priorities: Number of priorities for the notification channel (1-8);
202 * relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
203 * @qbman_version: QBMAN version
207 uint64_t qbman_portal_ce_offset;
208 uint64_t qbman_portal_ci_offset;
209 uint16_t qbman_portal_id;
210 enum dpio_channel_mode channel_mode;
211 uint8_t num_priorities;
212 uint32_t qbman_version;
216 * dpio_get_attributes() - Retrieve DPIO attributes
217 * @mc_io: Pointer to MC portal's I/O object
218 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
219 * @token: Token of DPIO object
220 * @attr: Returned object's attributes
222 * Return: '0' on Success; Error code otherwise
224 int dpio_get_attributes(struct fsl_mc_io *mc_io,
227 struct dpio_attr *attr);
230 * dpio_get_api_version - Retrieve DPIO Major and Minor version info.
232 * @mc_io: Pointer to MC portal's I/O object
233 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
234 * @major_ver: DPIO major version
235 * @minor_ver: DPIO minor version
237 * Return: '0' on Success; Error code otherwise.
239 int dpio_get_api_version(struct fsl_mc_io *mc_io,
244 #endif /* _FSL_DPIO_H */