aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/bus/fslmc/mc/dpio.c
blob: 76c5d7b72f4ce78f3ed68b065beaf73a3640d4d8 (plain)
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
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
/*-
 * This file is provided under a dual BSD/GPLv2 license. When using or
 * redistributing this file, you may do so under either license.
 *
 *   BSD LICENSE
 *
 * Copyright 2013-2016 Freescale Semiconductor Inc.
 * Copyright 2016-2017 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 the above-listed copyright holders nor the
 * names of any contributors may be used to endorse or promote products
 * derived from this software without specific prior written permission.
 *
 *   GPL LICENSE SUMMARY
 *
 * 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 THE COPYRIGHT HOLDERS AND CONTRIBUTORS "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 THE COPYRIGHT HOLDERS OR CONTRIBUTORS 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.
 */
#include <fsl_mc_sys.h>
#include <fsl_mc_cmd.h>
#include <fsl_dpio.h>
#include <fsl_dpio_cmd.h>

/**
 * dpio_open() - Open a control session for the specified object
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @dpio_id:	DPIO unique ID
 * @token:	Returned token; use in subsequent API calls
 *
 * This function can be used to open a control session for an
 * already created object; an object may have been declared in
 * the DPL or by calling the dpio_create() function.
 * This function returns a unique authentication token,
 * associated with the specific object ID and any MC portals
 * assigned to the parent container; this token must be used in
 * all subsequent commands for this specific object.
 *
 * Return:	'0' on Success; Error code otherwise.
 */
int dpio_open(struct fsl_mc_io *mc_io,
	      uint32_t cmd_flags,
	      int dpio_id,
	      uint16_t *token)
{
	struct dpio_cmd_open *cmd_params;
	struct mc_command cmd = { 0 };
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_OPEN,
					  cmd_flags,
					  0);
	cmd_params = (struct dpio_cmd_open *)cmd.params;
	cmd_params->dpio_id = cpu_to_le32(dpio_id);

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	/* retrieve response parameters */
	*token = mc_cmd_hdr_read_token(&cmd);

	return 0;
}

/**
 * dpio_close() - Close the control session of the object
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPIO object
 *
 * Return:	'0' on Success; Error code otherwise.
 */
int dpio_close(struct fsl_mc_io *mc_io,
	       uint32_t cmd_flags,
	       uint16_t token)
{
	struct mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_CLOSE,
					  cmd_flags,
					  token);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
}

/**
 * dpio_create() - Create the DPIO object.
 * @mc_io:	Pointer to MC portal's I/O object
 * @dprc_token:	Parent container token; '0' for default container
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @cfg:	Configuration structure
 * @obj_id:	Returned object id
 *
 * Create the DPIO object, allocate required resources and
 * perform required initialization.
 *
 * The object can be created either by declaring it in the
 * DPL file, or by calling this function.
 *
 * The function accepts an authentication token of a parent
 * container that this object should be assigned to. The token
 * can be '0' so the object will be assigned to the default container.
 * The newly created object can be opened with the returned
 * object id and using the container's associated tokens and MC portals.
 *
 * Return:	'0' on Success; Error code otherwise.
 */
int dpio_create(struct fsl_mc_io *mc_io,
		uint16_t dprc_token,
		uint32_t cmd_flags,
		const struct dpio_cfg *cfg,
		uint32_t *obj_id)
{
	struct dpio_cmd_create *cmd_params;
	struct mc_command cmd = { 0 };
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_CREATE,
					  cmd_flags,
					  dprc_token);
	cmd_params = (struct dpio_cmd_create *)cmd.params;
	cmd_params->num_priorities = cfg->num_priorities;
	dpio_set_field(cmd_params->channel_mode,
		       CHANNEL_MODE,
		       cfg->channel_mode);

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	/* retrieve response parameters */
	*obj_id = mc_cmd_read_object_id(&cmd);

	return 0;
}

/**
 * dpio_destroy() - Destroy the DPIO object and release all its resources.
 * @mc_io:	Pointer to MC portal's I/O object
 * @dprc_token: Parent container token; '0' for default container
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @object_id:	The object id; it must be a valid id within the container that
 *		created this object;
 *
 * The function accepts the authentication token of the parent container that
 * created the object (not the one that currently owns the object). The object
 * is searched within parent using the provided 'object_id'.
 * All tokens to the object must be closed before calling destroy.
 *
 * Return:	'0' on Success; Error code otherwise
 */
int dpio_destroy(struct fsl_mc_io *mc_io,
		 uint16_t dprc_token,
		 uint32_t cmd_flags,
		 uint32_t object_id)
{
	struct dpio_cmd_destroy *cmd_params;
	struct mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_DESTROY,
			cmd_flags,
			dprc_token);

	/* set object id to destroy */
	cmd_params = (struct dpio_cmd_destroy *)cmd.params;
	cmd_params->dpio_id = cpu_to_le32(object_id);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
}

/**
 * dpio_enable() - Enable the DPIO, allow I/O portal operations.
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPIO object
 *
 * Return:	'0' on Success; Error code otherwise
 */
int dpio_enable(struct fsl_mc_io *mc_io,
		uint32_t cmd_flags,
		uint16_t token)
{
	struct mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_ENABLE,
					  cmd_flags,
					  token);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
}

/**
 * dpio_disable() - Disable the DPIO, stop any I/O portal operation.
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPIO object
 *
 * Return:	'0' on Success; Error code otherwise
 */
int dpio_disable(struct fsl_mc_io *mc_io,
		 uint32_t cmd_flags,
		 uint16_t token)
{
	struct mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_DISABLE,
					  cmd_flags,
					  token);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
}

/**
 * dpio_is_enabled() - Check if the DPIO is enabled.
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPIO object
 * @en:		Returns '1' if object is enabled; '0' otherwise
 *
 * Return:	'0' on Success; Error code otherwise.
 */
int dpio_is_enabled(struct fsl_mc_io *mc_io,
		    uint32_t cmd_flags,
		    uint16_t token,
		    int *en)
{
	struct dpio_rsp_is_enabled *rsp_params;
	struct mc_command cmd = { 0 };
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_IS_ENABLED, cmd_flags,
					  token);

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	/* retrieve response parameters */
	rsp_params = (struct dpio_rsp_is_enabled *)cmd.params;
	*en = dpio_get_field(rsp_params->en, ENABLE);

	return 0;
}

/**
 * dpio_reset() - Reset the DPIO, returns the object to initial state.
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPIO object
 *
 * Return:	'0' on Success; Error code otherwise.
 */
int dpio_reset(struct fsl_mc_io *mc_io,
	       uint32_t cmd_flags,
	       uint16_t token)
{
	struct mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_RESET,
					  cmd_flags,
					  token);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
}

int dpio_get_attributes(struct fsl_mc_io *mc_io,
			uint32_t cmd_flags,
			uint16_t token,
			struct dpio_attr *attr)
{
	struct dpio_rsp_get_attr *rsp_params;
	struct mc_command cmd = { 0 };
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_ATTR,
					  cmd_flags,
					  token);

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	/* retrieve response parameters */
	rsp_params = (struct dpio_rsp_get_attr *)cmd.params;
	attr->id = le32_to_cpu(rsp_params->id);
	attr->qbman_portal_id = le16_to_cpu(rsp_params->qbman_portal_id);
	attr->num_priorities = rsp_params->num_priorities;
	attr->qbman_portal_ce_offset =
				le64_to_cpu(rsp_params->qbman_portal_ce_offset);
	attr->qbman_portal_ci_offset =
				le64_to_cpu(rsp_params->qbman_portal_ci_offset);
	attr->qbman_version = le32_to_cpu(rsp_params->qbman_version);
	attr->clk = le32_to_cpu(rsp_params->clk);
	attr->channel_mode = dpio_get_field(rsp_params->channel_mode,
					    ATTR_CHANNEL_MODE);

	return 0;
}

/**
 * dpio_set_stashing_destination() - Set the stashing destination.
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPIO object
 * @sdest:	Stashing destination value
 *
 * Return:	'0' on Success; Error code otherwise.
 */
int dpio_set_stashing_destination(struct fsl_mc_io *mc_io,
				  uint32_t cmd_flags,
				  uint16_t token,
				  uint8_t sdest)
{
	struct dpio_stashing_dest *cmd_params;
	struct mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_SET_STASHING_DEST,
					  cmd_flags,
					  token);
	cmd_params = (struct dpio_stashing_dest *)cmd.params;
	cmd_params->sdest = sdest;

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
}

/**
 * dpio_get_stashing_destination() - Get the stashing destination..
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPIO object
 * @sdest:	Returns the stashing destination value
 *
 * Return:	'0' on Success; Error code otherwise.
 */
int dpio_get_stashing_destination(struct fsl_mc_io *mc_io,
				  uint32_t cmd_flags,
				  uint16_t token,
				  uint8_t *sdest)
{
	struct dpio_stashing_dest *rsp_params;
	struct mc_command cmd = { 0 };
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_STASHING_DEST,
					  cmd_flags,
					  token);

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	/* retrieve response parameters */
	rsp_params = (struct dpio_stashing_dest *)cmd.params;
	*sdest = rsp_params->sdest;

	return 0;
}

/**
 * dpio_add_static_dequeue_channel() - Add a static dequeue channel.
 * @mc_io:		Pointer to MC portal's I/O object
 * @cmd_flags:		Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:		Token of DPIO object
 * @dpcon_id:		DPCON object ID
 * @channel_index:	Returned channel index to be used in qbman API
 *
 * Return:	'0' on Success; Error code otherwise.
 */
int dpio_add_static_dequeue_channel(struct fsl_mc_io *mc_io,
				    uint32_t cmd_flags,
				    uint16_t token,
				    int dpcon_id,
				    uint8_t *channel_index)
{
	struct dpio_rsp_add_static_dequeue_channel *rsp_params;
	struct dpio_cmd_static_dequeue_channel *cmd_params;
	struct mc_command cmd = { 0 };
	int err;

	/* prepare command */
	cmd.header = mc_encode_cmd_header(DPIO_CMDID_ADD_STATIC_DEQUEUE_CHANNEL,
					  cmd_flags,
					  token);
	cmd_params = (struct dpio_cmd_static_dequeue_channel *)cmd.params;
	cmd_params->dpcon_id = cpu_to_le32(dpcon_id);

	/* send command to mc*/
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	/* retrieve response parameters */
	rsp_params = (struct dpio_rsp_add_static_dequeue_channel *)cmd.params;
	*channel_index = rsp_params->channel_index;

	return 0;
}

/**
 * dpio_remove_static_dequeue_channel() - Remove a static dequeue channel.
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPIO object
 * @dpcon_id:	DPCON object ID
 *
 * Return:	'0' on Success; Error code otherwise.
 */
int dpio_remove_static_dequeue_channel(struct fsl_mc_io *mc_io,
				       uint32_t cmd_flags,
				       uint16_t token,
				       int dpcon_id)
{
	struct dpio_cmd_static_dequeue_channel *cmd_params;
	struct mc_command cmd = { 0 };

	/* prepare command */
	cmd.header = mc_encode_cmd_header(
				DPIO_CMDID_REMOVE_STATIC_DEQUEUE_CHANNEL,
				cmd_flags,
				token);
	cmd_params = (struct dpio_cmd_static_dequeue_channel *)cmd.params;
	cmd_params->dpcon_id = cpu_to_le32(dpcon_id);

	/* send command to mc*/
	return mc_send_command(mc_io, &cmd);
}

/**
 * dpio_get_api_version() - Get Data Path I/O API version
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @major_ver:	Major version of data path i/o API
 * @minor_ver:	Minor version of data path i/o API
 *
 * Return:  '0' on Success; Error code otherwise.
 */
int dpio_get_api_version(struct fsl_mc_io *mc_io,
			 uint32_t cmd_flags,
			 uint16_t *major_ver,
			 uint16_t *minor_ver)
{
	struct dpio_rsp_get_api_version *rsp_params;
	struct mc_command cmd = { 0 };
	int err;

	cmd.header = mc_encode_cmd_header(DPIO_CMDID_GET_API_VERSION,
					cmd_flags,
					0);

	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	rsp_params = (struct dpio_rsp_get_api_version *)cmd.params;
	*major_ver = le16_to_cpu(rsp_params->major);
	*minor_ver = le16_to_cpu(rsp_params->minor);

	return 0;
}