2 * Copyright (C) 2013-2015 Freescale Semiconductor
4 * SPDX-License-Identifier: GPL-2.0+
11 #define DPIO_VER_MAJOR 3
12 #define DPIO_VER_MINOR 2
15 #define DPIO_CMDID_CLOSE 0x800
16 #define DPIO_CMDID_OPEN 0x803
17 #define DPIO_CMDID_CREATE 0x903
18 #define DPIO_CMDID_DESTROY 0x900
20 #define DPIO_CMDID_ENABLE 0x002
21 #define DPIO_CMDID_DISABLE 0x003
22 #define DPIO_CMDID_GET_ATTR 0x004
23 #define DPIO_CMDID_RESET 0x005
25 /* cmd, param, offset, width, type, arg_name */
26 #define DPIO_CMD_OPEN(cmd, dpio_id) \
27 MC_CMD_OP(cmd, 0, 0, 32, int, dpio_id)
29 /* cmd, param, offset, width, type, arg_name */
30 #define DPIO_CMD_CREATE(cmd, cfg) \
32 MC_CMD_OP(cmd, 0, 16, 2, enum dpio_channel_mode, \
34 MC_CMD_OP(cmd, 0, 32, 8, uint8_t, cfg->num_priorities);\
37 /* cmd, param, offset, width, type, arg_name */
38 #define DPIO_RSP_GET_ATTR(cmd, attr) \
40 MC_RSP_OP(cmd, 0, 0, 32, int, attr->id);\
41 MC_RSP_OP(cmd, 0, 32, 16, uint16_t, attr->qbman_portal_id);\
42 MC_RSP_OP(cmd, 0, 48, 8, uint8_t, attr->num_priorities);\
43 MC_RSP_OP(cmd, 0, 56, 4, enum dpio_channel_mode, attr->channel_mode);\
44 MC_RSP_OP(cmd, 1, 0, 64, uint64_t, attr->qbman_portal_ce_offset);\
45 MC_RSP_OP(cmd, 2, 0, 64, uint64_t, attr->qbman_portal_ci_offset);\
46 MC_RSP_OP(cmd, 3, 0, 16, uint16_t, attr->version.major);\
47 MC_RSP_OP(cmd, 3, 16, 16, uint16_t, attr->version.minor);\
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 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
118 * @cfg: Configuration structure
119 * @token: Returned token; use in subsequent API calls
121 * Create the DPIO object, allocate required resources and
122 * perform required initialization.
124 * The object can be created either by declaring it in the
125 * DPL file, or by calling this function.
127 * This function returns a unique authentication token,
128 * associated with the specific object ID and the specific MC
129 * portal; this token must be used in all subsequent calls to
130 * this specific object. For objects that are created using the
131 * DPL file, call dpio_open() function to get an authentication
134 * Return: '0' on Success; Error code otherwise.
136 int dpio_create(struct fsl_mc_io *mc_io,
138 const struct dpio_cfg *cfg,
142 * dpio_destroy() - Destroy the DPIO object and release all its resources.
143 * @mc_io: Pointer to MC portal's I/O object
144 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
145 * @token: Token of DPIO object
147 * Return: '0' on Success; Error code otherwise
149 int dpio_destroy(struct fsl_mc_io *mc_io,
154 * dpio_enable() - Enable the DPIO, allow I/O portal operations.
155 * @mc_io: Pointer to MC portal's I/O object
156 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
157 * @token: Token of DPIO object
159 * Return: '0' on Success; Error code otherwise
161 int dpio_enable(struct fsl_mc_io *mc_io,
166 * dpio_disable() - Disable the DPIO, stop any I/O portal operation.
167 * @mc_io: Pointer to MC portal's I/O object
168 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
169 * @token: Token of DPIO object
171 * Return: '0' on Success; Error code otherwise
173 int dpio_disable(struct fsl_mc_io *mc_io,
178 * dpio_reset() - Reset the DPIO, returns the object to initial state.
179 * @mc_io: Pointer to MC portal's I/O object
180 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
181 * @token: Token of DPIO object
183 * Return: '0' on Success; Error code otherwise.
185 int dpio_reset(struct fsl_mc_io *mc_io,
190 * struct dpio_attr - Structure representing DPIO attributes
191 * @id: DPIO object ID
192 * @version: DPIO version
193 * @qbman_portal_ce_offset: offset of the software portal cache-enabled area
194 * @qbman_portal_ci_offset: offset of the software portal cache-inhibited area
195 * @qbman_portal_id: Software portal ID
196 * @channel_mode: Notification channel mode
197 * @num_priorities: Number of priorities for the notification channel (1-8);
198 * relevant only if 'channel_mode = DPIO_LOCAL_CHANNEL'
199 * @qbman_version: QBMAN version
204 * struct version - DPIO version
205 * @major: DPIO major version
206 * @minor: DPIO minor version
212 uint64_t qbman_portal_ce_offset;
213 uint64_t qbman_portal_ci_offset;
214 uint16_t qbman_portal_id;
215 enum dpio_channel_mode channel_mode;
216 uint8_t num_priorities;
217 uint32_t qbman_version;
221 * dpio_get_attributes() - Retrieve DPIO attributes
222 * @mc_io: Pointer to MC portal's I/O object
223 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
224 * @token: Token of DPIO object
225 * @attr: Returned object's attributes
227 * Return: '0' on Success; Error code otherwise
229 int dpio_get_attributes(struct fsl_mc_io *mc_io,
232 struct dpio_attr *attr);
234 #endif /* _FSL_DPIO_H */