aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/crypto/caam/dpseci.c
blob: 8a68531ded0b2cc44514dd9c3d84c409d27c0f89 (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
// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
/*
 * Copyright 2013-2016 Freescale Semiconductor Inc.
 * Copyright 2017-2018 NXP
 */

#include <linux/fsl/mc.h>
#include "dpseci.h"
#include "dpseci_cmd.h"

/**
 * dpseci_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_'
 * @dpseci_id:	DPSECI 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 statically in the DPL
 * or created dynamically.
 * This function returns a unique authentication token, associated with the
 * specific object ID and the specific MC portal; this token must be used in all
 * subsequent commands for this specific object.
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int dpseci_id,
		u16 *token)
{
	struct fsl_mc_command cmd = { 0 };
	struct dpseci_cmd_open *cmd_params;
	int err;

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_OPEN,
					  cmd_flags,
					  0);
	cmd_params = (struct dpseci_cmd_open *)cmd.params;
	cmd_params->dpseci_id = cpu_to_le32(dpseci_id);
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	*token = mc_cmd_hdr_read_token(&cmd);

	return 0;
}

/**
 * dpseci_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 DPSECI object
 *
 * After this function is called, no further operations are allowed on the
 * object without opening a new control session.
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
{
	struct fsl_mc_command cmd = { 0 };

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_CLOSE,
					  cmd_flags,
					  token);
	return mc_send_command(mc_io, &cmd);
}

/**
 * dpseci_enable() - Enable the DPSECI, allow sending and receiving frames
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPSECI object
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
{
	struct fsl_mc_command cmd = { 0 };

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_ENABLE,
					  cmd_flags,
					  token);
	return mc_send_command(mc_io, &cmd);
}

/**
 * dpseci_disable() - Disable the DPSECI, stop sending and receiving frames
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPSECI object
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
{
	struct fsl_mc_command cmd = { 0 };

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_DISABLE,
					  cmd_flags,
					  token);

	return mc_send_command(mc_io, &cmd);
}

/**
 * dpseci_is_enabled() - Check if the DPSECI 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 DPSECI object
 * @en:		Returns '1' if object is enabled; '0' otherwise
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_is_enabled(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
		      int *en)
{
	struct fsl_mc_command cmd = { 0 };
	struct dpseci_rsp_is_enabled *rsp_params;
	int err;

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_IS_ENABLED,
					  cmd_flags,
					  token);
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	rsp_params = (struct dpseci_rsp_is_enabled *)cmd.params;
	*en = dpseci_get_field(rsp_params->is_enabled, ENABLE);

	return 0;
}

/**
 * dpseci_get_attributes() - Retrieve DPSECI attributes
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPSECI object
 * @attr:	Returned object's attributes
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
			  struct dpseci_attr *attr)
{
	struct fsl_mc_command cmd = { 0 };
	struct dpseci_rsp_get_attributes *rsp_params;
	int err;

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_ATTR,
					  cmd_flags,
					  token);
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	rsp_params = (struct dpseci_rsp_get_attributes *)cmd.params;
	attr->id = le32_to_cpu(rsp_params->id);
	attr->num_tx_queues = rsp_params->num_tx_queues;
	attr->num_rx_queues = rsp_params->num_rx_queues;
	attr->options = le32_to_cpu(rsp_params->options);

	return 0;
}

/**
 * dpseci_set_rx_queue() - Set Rx queue configuration
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPSECI object
 * @queue:	Select the queue relative to number of priorities configured at
 *		DPSECI creation; use DPSECI_ALL_QUEUES to configure all
 *		Rx queues identically.
 * @cfg:	Rx queue configuration
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
			u8 queue, const struct dpseci_rx_queue_cfg *cfg)
{
	struct fsl_mc_command cmd = { 0 };
	struct dpseci_cmd_queue *cmd_params;

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_SET_RX_QUEUE,
					  cmd_flags,
					  token);
	cmd_params = (struct dpseci_cmd_queue *)cmd.params;
	cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
	cmd_params->priority = cfg->dest_cfg.priority;
	cmd_params->queue = queue;
	dpseci_set_field(cmd_params->dest_type, DEST_TYPE,
			 cfg->dest_cfg.dest_type);
	cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx);
	cmd_params->options = cpu_to_le32(cfg->options);
	dpseci_set_field(cmd_params->order_preservation_en, ORDER_PRESERVATION,
			 cfg->order_preservation_en);

	return mc_send_command(mc_io, &cmd);
}

/**
 * dpseci_get_rx_queue() - Retrieve Rx queue attributes
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPSECI object
 * @queue:	Select the queue relative to number of priorities configured at
 *		DPSECI creation
 * @attr:	Returned Rx queue attributes
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
			u8 queue, struct dpseci_rx_queue_attr *attr)
{
	struct fsl_mc_command cmd = { 0 };
	struct dpseci_cmd_queue *cmd_params;
	int err;

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_RX_QUEUE,
					  cmd_flags,
					  token);
	cmd_params = (struct dpseci_cmd_queue *)cmd.params;
	cmd_params->queue = queue;
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	attr->dest_cfg.dest_id = le32_to_cpu(cmd_params->dest_id);
	attr->dest_cfg.priority = cmd_params->priority;
	attr->dest_cfg.dest_type = dpseci_get_field(cmd_params->dest_type,
						    DEST_TYPE);
	attr->user_ctx = le64_to_cpu(cmd_params->user_ctx);
	attr->fqid = le32_to_cpu(cmd_params->fqid);
	attr->order_preservation_en =
		dpseci_get_field(cmd_params->order_preservation_en,
				 ORDER_PRESERVATION);

	return 0;
}

/**
 * dpseci_get_tx_queue() - Retrieve Tx queue attributes
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPSECI object
 * @queue:	Select the queue relative to number of priorities configured at
 *		DPSECI creation
 * @attr:	Returned Tx queue attributes
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
			u8 queue, struct dpseci_tx_queue_attr *attr)
{
	struct fsl_mc_command cmd = { 0 };
	struct dpseci_cmd_queue *cmd_params;
	struct dpseci_rsp_get_tx_queue *rsp_params;
	int err;

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_TX_QUEUE,
					  cmd_flags,
					  token);
	cmd_params = (struct dpseci_cmd_queue *)cmd.params;
	cmd_params->queue = queue;
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	rsp_params = (struct dpseci_rsp_get_tx_queue *)cmd.params;
	attr->fqid = le32_to_cpu(rsp_params->fqid);
	attr->priority = rsp_params->priority;

	return 0;
}

/**
 * dpseci_get_sec_attr() - Retrieve SEC accelerator attributes
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPSECI object
 * @attr:	Returned SEC attributes
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_get_sec_attr(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
			struct dpseci_sec_attr *attr)
{
	struct fsl_mc_command cmd = { 0 };
	struct dpseci_rsp_get_sec_attr *rsp_params;
	int err;

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_SEC_ATTR,
					  cmd_flags,
					  token);
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	rsp_params = (struct dpseci_rsp_get_sec_attr *)cmd.params;
	attr->ip_id = le16_to_cpu(rsp_params->ip_id);
	attr->major_rev = rsp_params->major_rev;
	attr->minor_rev = rsp_params->minor_rev;
	attr->era = rsp_params->era;
	attr->deco_num = rsp_params->deco_num;
	attr->zuc_auth_acc_num = rsp_params->zuc_auth_acc_num;
	attr->zuc_enc_acc_num = rsp_params->zuc_enc_acc_num;
	attr->snow_f8_acc_num = rsp_params->snow_f8_acc_num;
	attr->snow_f9_acc_num = rsp_params->snow_f9_acc_num;
	attr->crc_acc_num = rsp_params->crc_acc_num;
	attr->pk_acc_num = rsp_params->pk_acc_num;
	attr->kasumi_acc_num = rsp_params->kasumi_acc_num;
	attr->rng_acc_num = rsp_params->rng_acc_num;
	attr->md_acc_num = rsp_params->md_acc_num;
	attr->arc4_acc_num = rsp_params->arc4_acc_num;
	attr->des_acc_num = rsp_params->des_acc_num;
	attr->aes_acc_num = rsp_params->aes_acc_num;
	attr->ccha_acc_num = rsp_params->ccha_acc_num;
	attr->ptha_acc_num = rsp_params->ptha_acc_num;

	return 0;
}

/**
 * dpseci_get_api_version() - Get Data Path SEC Interface 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 sec API
 * @minor_ver:	Minor version of data path sec API
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags,
			   u16 *major_ver, u16 *minor_ver)
{
	struct fsl_mc_command cmd = { 0 };
	struct dpseci_rsp_get_api_version *rsp_params;
	int err;

	cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_API_VERSION,
					  cmd_flags, 0);
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

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

	return 0;
}

/**
 * dpseci_set_congestion_notification() - Set congestion group
 *	notification configuration
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPSECI object
 * @cfg:	congestion notification configuration
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_set_congestion_notification(struct fsl_mc_io *mc_io, u32 cmd_flags,
	u16 token, const struct dpseci_congestion_notification_cfg *cfg)
{
	struct fsl_mc_command cmd = { 0 };
	struct dpseci_cmd_congestion_notification *cmd_params;

	cmd.header = mc_encode_cmd_header(
			DPSECI_CMDID_SET_CONGESTION_NOTIFICATION,
			cmd_flags,
			token);
	cmd_params = (struct dpseci_cmd_congestion_notification *)cmd.params;
	cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
	cmd_params->notification_mode = cpu_to_le16(cfg->notification_mode);
	cmd_params->priority = cfg->dest_cfg.priority;
	dpseci_set_field(cmd_params->options, CGN_DEST_TYPE,
			 cfg->dest_cfg.dest_type);
	dpseci_set_field(cmd_params->options, CGN_UNITS, cfg->units);
	cmd_params->message_iova = cpu_to_le64(cfg->message_iova);
	cmd_params->message_ctx = cpu_to_le64(cfg->message_ctx);
	cmd_params->threshold_entry = cpu_to_le32(cfg->threshold_entry);
	cmd_params->threshold_exit = cpu_to_le32(cfg->threshold_exit);

	return mc_send_command(mc_io, &cmd);
}

/**
 * dpseci_get_congestion_notification() - Get congestion group notification
 *	configuration
 * @mc_io:	Pointer to MC portal's I/O object
 * @cmd_flags:	Command flags; one or more of 'MC_CMD_FLAG_'
 * @token:	Token of DPSECI object
 * @cfg:	congestion notification configuration
 *
 * Return:	'0' on success, error code otherwise
 */
int dpseci_get_congestion_notification(struct fsl_mc_io *mc_io, u32 cmd_flags,
	u16 token, struct dpseci_congestion_notification_cfg *cfg)
{
	struct fsl_mc_command cmd = { 0 };
	struct dpseci_cmd_congestion_notification *rsp_params;
	int err;

	cmd.header = mc_encode_cmd_header(
			DPSECI_CMDID_GET_CONGESTION_NOTIFICATION,
			cmd_flags,
			token);
	err = mc_send_command(mc_io, &cmd);
	if (err)
		return err;

	rsp_params = (struct dpseci_cmd_congestion_notification *)cmd.params;
	cfg->dest_cfg.dest_id = le32_to_cpu(rsp_params->dest_id);
	cfg->notification_mode = le16_to_cpu(rsp_params->notification_mode);
	cfg->dest_cfg.priority = rsp_params->priority;
	cfg->dest_cfg.dest_type = dpseci_get_field(rsp_params->options,
						   CGN_DEST_TYPE);
	cfg->units = dpseci_get_field(rsp_params->options, CGN_UNITS);
	cfg->message_iova = le64_to_cpu(rsp_params->message_iova);
	cfg->message_ctx = le64_to_cpu(rsp_params->message_ctx);
	cfg->threshold_entry = le32_to_cpu(rsp_params->threshold_entry);
	cfg->threshold_exit = le32_to_cpu(rsp_params->threshold_exit);

	return 0;
}