1 // SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
2 /*
3 * Copyright 2013-2016 Freescale Semiconductor Inc.
4 * Copyright 2017-2018 NXP
5 */
6
7 #include <linux/fsl/mc.h>
8 #include "dpseci.h"
9 #include "dpseci_cmd.h"
10
11 /**
12 * dpseci_open() - Open a control session for the specified object
13 * @mc_io: Pointer to MC portal's I/O object
14 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
15 * @dpseci_id: DPSECI unique ID
16 * @token: Returned token; use in subsequent API calls
17 *
18 * This function can be used to open a control session for an already created
19 * object; an object may have been declared statically in the DPL
20 * or created dynamically.
21 * This function returns a unique authentication token, associated with the
22 * specific object ID and the specific MC portal; this token must be used in all
23 * subsequent commands for this specific object.
24 *
25 * Return: '0' on success, error code otherwise
26 */
dpseci_open(struct fsl_mc_io * mc_io,u32 cmd_flags,int dpseci_id,u16 * token)27 int dpseci_open(struct fsl_mc_io *mc_io, u32 cmd_flags, int dpseci_id,
28 u16 *token)
29 {
30 struct fsl_mc_command cmd = { 0 };
31 struct dpseci_cmd_open *cmd_params;
32 int err;
33
34 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_OPEN,
35 cmd_flags,
36 0);
37 cmd_params = (struct dpseci_cmd_open *)cmd.params;
38 cmd_params->dpseci_id = cpu_to_le32(dpseci_id);
39 err = mc_send_command(mc_io, &cmd);
40 if (err)
41 return err;
42
43 *token = mc_cmd_hdr_read_token(&cmd);
44
45 return 0;
46 }
47
48 /**
49 * dpseci_close() - Close the control session of the object
50 * @mc_io: Pointer to MC portal's I/O object
51 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
52 * @token: Token of DPSECI object
53 *
54 * After this function is called, no further operations are allowed on the
55 * object without opening a new control session.
56 *
57 * Return: '0' on success, error code otherwise
58 */
dpseci_close(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token)59 int dpseci_close(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
60 {
61 struct fsl_mc_command cmd = { 0 };
62
63 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_CLOSE,
64 cmd_flags,
65 token);
66 return mc_send_command(mc_io, &cmd);
67 }
68
69 /**
70 * dpseci_enable() - Enable the DPSECI, allow sending and receiving frames
71 * @mc_io: Pointer to MC portal's I/O object
72 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
73 * @token: Token of DPSECI object
74 *
75 * Return: '0' on success, error code otherwise
76 */
dpseci_enable(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token)77 int dpseci_enable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
78 {
79 struct fsl_mc_command cmd = { 0 };
80
81 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_ENABLE,
82 cmd_flags,
83 token);
84 return mc_send_command(mc_io, &cmd);
85 }
86
87 /**
88 * dpseci_disable() - Disable the DPSECI, stop sending and receiving frames
89 * @mc_io: Pointer to MC portal's I/O object
90 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
91 * @token: Token of DPSECI object
92 *
93 * Return: '0' on success, error code otherwise
94 */
dpseci_disable(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token)95 int dpseci_disable(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
96 {
97 struct fsl_mc_command cmd = { 0 };
98
99 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_DISABLE,
100 cmd_flags,
101 token);
102
103 return mc_send_command(mc_io, &cmd);
104 }
105
106 /**
107 * dpseci_reset() - Reset the DPSECI, returns the object to initial state
108 * @mc_io: Pointer to MC portal's I/O object
109 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
110 * @token: Token of DPSECI object
111 *
112 * Return: '0' on success, error code otherwise
113 */
dpseci_reset(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token)114 int dpseci_reset(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token)
115 {
116 struct fsl_mc_command cmd = { 0 };
117
118 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_RESET,
119 cmd_flags,
120 token);
121 return mc_send_command(mc_io, &cmd);
122 }
123
124 /**
125 * dpseci_is_enabled() - Check if the DPSECI is enabled.
126 * @mc_io: Pointer to MC portal's I/O object
127 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
128 * @token: Token of DPSECI object
129 * @en: Returns '1' if object is enabled; '0' otherwise
130 *
131 * Return: '0' on success, error code otherwise
132 */
dpseci_is_enabled(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,int * en)133 int dpseci_is_enabled(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
134 int *en)
135 {
136 struct fsl_mc_command cmd = { 0 };
137 struct dpseci_rsp_is_enabled *rsp_params;
138 int err;
139
140 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_IS_ENABLED,
141 cmd_flags,
142 token);
143 err = mc_send_command(mc_io, &cmd);
144 if (err)
145 return err;
146
147 rsp_params = (struct dpseci_rsp_is_enabled *)cmd.params;
148 *en = dpseci_get_field(rsp_params->is_enabled, ENABLE);
149
150 return 0;
151 }
152
153 /**
154 * dpseci_get_attributes() - Retrieve DPSECI attributes
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 DPSECI object
158 * @attr: Returned object's attributes
159 *
160 * Return: '0' on success, error code otherwise
161 */
dpseci_get_attributes(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,struct dpseci_attr * attr)162 int dpseci_get_attributes(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
163 struct dpseci_attr *attr)
164 {
165 struct fsl_mc_command cmd = { 0 };
166 struct dpseci_rsp_get_attributes *rsp_params;
167 int err;
168
169 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_ATTR,
170 cmd_flags,
171 token);
172 err = mc_send_command(mc_io, &cmd);
173 if (err)
174 return err;
175
176 rsp_params = (struct dpseci_rsp_get_attributes *)cmd.params;
177 attr->id = le32_to_cpu(rsp_params->id);
178 attr->num_tx_queues = rsp_params->num_tx_queues;
179 attr->num_rx_queues = rsp_params->num_rx_queues;
180 attr->options = le32_to_cpu(rsp_params->options);
181
182 return 0;
183 }
184
185 /**
186 * dpseci_set_rx_queue() - Set Rx queue configuration
187 * @mc_io: Pointer to MC portal's I/O object
188 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
189 * @token: Token of DPSECI object
190 * @queue: Select the queue relative to number of priorities configured at
191 * DPSECI creation; use DPSECI_ALL_QUEUES to configure all
192 * Rx queues identically.
193 * @cfg: Rx queue configuration
194 *
195 * Return: '0' on success, error code otherwise
196 */
dpseci_set_rx_queue(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,u8 queue,const struct dpseci_rx_queue_cfg * cfg)197 int dpseci_set_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
198 u8 queue, const struct dpseci_rx_queue_cfg *cfg)
199 {
200 struct fsl_mc_command cmd = { 0 };
201 struct dpseci_cmd_queue *cmd_params;
202
203 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_SET_RX_QUEUE,
204 cmd_flags,
205 token);
206 cmd_params = (struct dpseci_cmd_queue *)cmd.params;
207 cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
208 cmd_params->priority = cfg->dest_cfg.priority;
209 cmd_params->queue = queue;
210 dpseci_set_field(cmd_params->dest_type, DEST_TYPE,
211 cfg->dest_cfg.dest_type);
212 cmd_params->user_ctx = cpu_to_le64(cfg->user_ctx);
213 cmd_params->options = cpu_to_le32(cfg->options);
214 dpseci_set_field(cmd_params->order_preservation_en, ORDER_PRESERVATION,
215 cfg->order_preservation_en);
216
217 return mc_send_command(mc_io, &cmd);
218 }
219
220 /**
221 * dpseci_get_rx_queue() - Retrieve Rx queue 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 DPSECI object
225 * @queue: Select the queue relative to number of priorities configured at
226 * DPSECI creation
227 * @attr: Returned Rx queue attributes
228 *
229 * Return: '0' on success, error code otherwise
230 */
dpseci_get_rx_queue(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,u8 queue,struct dpseci_rx_queue_attr * attr)231 int dpseci_get_rx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
232 u8 queue, struct dpseci_rx_queue_attr *attr)
233 {
234 struct fsl_mc_command cmd = { 0 };
235 struct dpseci_cmd_queue *cmd_params;
236 int err;
237
238 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_RX_QUEUE,
239 cmd_flags,
240 token);
241 cmd_params = (struct dpseci_cmd_queue *)cmd.params;
242 cmd_params->queue = queue;
243 err = mc_send_command(mc_io, &cmd);
244 if (err)
245 return err;
246
247 attr->dest_cfg.dest_id = le32_to_cpu(cmd_params->dest_id);
248 attr->dest_cfg.priority = cmd_params->priority;
249 attr->dest_cfg.dest_type = dpseci_get_field(cmd_params->dest_type,
250 DEST_TYPE);
251 attr->user_ctx = le64_to_cpu(cmd_params->user_ctx);
252 attr->fqid = le32_to_cpu(cmd_params->fqid);
253 attr->order_preservation_en =
254 dpseci_get_field(cmd_params->order_preservation_en,
255 ORDER_PRESERVATION);
256
257 return 0;
258 }
259
260 /**
261 * dpseci_get_tx_queue() - Retrieve Tx queue attributes
262 * @mc_io: Pointer to MC portal's I/O object
263 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
264 * @token: Token of DPSECI object
265 * @queue: Select the queue relative to number of priorities configured at
266 * DPSECI creation
267 * @attr: Returned Tx queue attributes
268 *
269 * Return: '0' on success, error code otherwise
270 */
dpseci_get_tx_queue(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,u8 queue,struct dpseci_tx_queue_attr * attr)271 int dpseci_get_tx_queue(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
272 u8 queue, struct dpseci_tx_queue_attr *attr)
273 {
274 struct fsl_mc_command cmd = { 0 };
275 struct dpseci_cmd_queue *cmd_params;
276 struct dpseci_rsp_get_tx_queue *rsp_params;
277 int err;
278
279 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_TX_QUEUE,
280 cmd_flags,
281 token);
282 cmd_params = (struct dpseci_cmd_queue *)cmd.params;
283 cmd_params->queue = queue;
284 err = mc_send_command(mc_io, &cmd);
285 if (err)
286 return err;
287
288 rsp_params = (struct dpseci_rsp_get_tx_queue *)cmd.params;
289 attr->fqid = le32_to_cpu(rsp_params->fqid);
290 attr->priority = rsp_params->priority;
291
292 return 0;
293 }
294
295 /**
296 * dpseci_get_sec_attr() - Retrieve SEC accelerator attributes
297 * @mc_io: Pointer to MC portal's I/O object
298 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
299 * @token: Token of DPSECI object
300 * @attr: Returned SEC attributes
301 *
302 * Return: '0' on success, error code otherwise
303 */
dpseci_get_sec_attr(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,struct dpseci_sec_attr * attr)304 int dpseci_get_sec_attr(struct fsl_mc_io *mc_io, u32 cmd_flags, u16 token,
305 struct dpseci_sec_attr *attr)
306 {
307 struct fsl_mc_command cmd = { 0 };
308 struct dpseci_rsp_get_sec_attr *rsp_params;
309 int err;
310
311 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_SEC_ATTR,
312 cmd_flags,
313 token);
314 err = mc_send_command(mc_io, &cmd);
315 if (err)
316 return err;
317
318 rsp_params = (struct dpseci_rsp_get_sec_attr *)cmd.params;
319 attr->ip_id = le16_to_cpu(rsp_params->ip_id);
320 attr->major_rev = rsp_params->major_rev;
321 attr->minor_rev = rsp_params->minor_rev;
322 attr->era = rsp_params->era;
323 attr->deco_num = rsp_params->deco_num;
324 attr->zuc_auth_acc_num = rsp_params->zuc_auth_acc_num;
325 attr->zuc_enc_acc_num = rsp_params->zuc_enc_acc_num;
326 attr->snow_f8_acc_num = rsp_params->snow_f8_acc_num;
327 attr->snow_f9_acc_num = rsp_params->snow_f9_acc_num;
328 attr->crc_acc_num = rsp_params->crc_acc_num;
329 attr->pk_acc_num = rsp_params->pk_acc_num;
330 attr->kasumi_acc_num = rsp_params->kasumi_acc_num;
331 attr->rng_acc_num = rsp_params->rng_acc_num;
332 attr->md_acc_num = rsp_params->md_acc_num;
333 attr->arc4_acc_num = rsp_params->arc4_acc_num;
334 attr->des_acc_num = rsp_params->des_acc_num;
335 attr->aes_acc_num = rsp_params->aes_acc_num;
336 attr->ccha_acc_num = rsp_params->ccha_acc_num;
337 attr->ptha_acc_num = rsp_params->ptha_acc_num;
338
339 return 0;
340 }
341
342 /**
343 * dpseci_get_api_version() - Get Data Path SEC Interface API version
344 * @mc_io: Pointer to MC portal's I/O object
345 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
346 * @major_ver: Major version of data path sec API
347 * @minor_ver: Minor version of data path sec API
348 *
349 * Return: '0' on success, error code otherwise
350 */
dpseci_get_api_version(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 * major_ver,u16 * minor_ver)351 int dpseci_get_api_version(struct fsl_mc_io *mc_io, u32 cmd_flags,
352 u16 *major_ver, u16 *minor_ver)
353 {
354 struct fsl_mc_command cmd = { 0 };
355 struct dpseci_rsp_get_api_version *rsp_params;
356 int err;
357
358 cmd.header = mc_encode_cmd_header(DPSECI_CMDID_GET_API_VERSION,
359 cmd_flags, 0);
360 err = mc_send_command(mc_io, &cmd);
361 if (err)
362 return err;
363
364 rsp_params = (struct dpseci_rsp_get_api_version *)cmd.params;
365 *major_ver = le16_to_cpu(rsp_params->major);
366 *minor_ver = le16_to_cpu(rsp_params->minor);
367
368 return 0;
369 }
370
371 /**
372 * dpseci_set_congestion_notification() - Set congestion group
373 * notification configuration
374 * @mc_io: Pointer to MC portal's I/O object
375 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
376 * @token: Token of DPSECI object
377 * @cfg: congestion notification configuration
378 *
379 * Return: '0' on success, error code otherwise
380 */
dpseci_set_congestion_notification(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,const struct dpseci_congestion_notification_cfg * cfg)381 int dpseci_set_congestion_notification(struct fsl_mc_io *mc_io, u32 cmd_flags,
382 u16 token, const struct dpseci_congestion_notification_cfg *cfg)
383 {
384 struct fsl_mc_command cmd = { 0 };
385 struct dpseci_cmd_congestion_notification *cmd_params;
386
387 cmd.header = mc_encode_cmd_header(
388 DPSECI_CMDID_SET_CONGESTION_NOTIFICATION,
389 cmd_flags,
390 token);
391 cmd_params = (struct dpseci_cmd_congestion_notification *)cmd.params;
392 cmd_params->dest_id = cpu_to_le32(cfg->dest_cfg.dest_id);
393 cmd_params->notification_mode = cpu_to_le16(cfg->notification_mode);
394 cmd_params->priority = cfg->dest_cfg.priority;
395 dpseci_set_field(cmd_params->options, CGN_DEST_TYPE,
396 cfg->dest_cfg.dest_type);
397 dpseci_set_field(cmd_params->options, CGN_UNITS, cfg->units);
398 cmd_params->message_iova = cpu_to_le64(cfg->message_iova);
399 cmd_params->message_ctx = cpu_to_le64(cfg->message_ctx);
400 cmd_params->threshold_entry = cpu_to_le32(cfg->threshold_entry);
401 cmd_params->threshold_exit = cpu_to_le32(cfg->threshold_exit);
402
403 return mc_send_command(mc_io, &cmd);
404 }
405
406 /**
407 * dpseci_get_congestion_notification() - Get congestion group notification
408 * configuration
409 * @mc_io: Pointer to MC portal's I/O object
410 * @cmd_flags: Command flags; one or more of 'MC_CMD_FLAG_'
411 * @token: Token of DPSECI object
412 * @cfg: congestion notification configuration
413 *
414 * Return: '0' on success, error code otherwise
415 */
dpseci_get_congestion_notification(struct fsl_mc_io * mc_io,u32 cmd_flags,u16 token,struct dpseci_congestion_notification_cfg * cfg)416 int dpseci_get_congestion_notification(struct fsl_mc_io *mc_io, u32 cmd_flags,
417 u16 token, struct dpseci_congestion_notification_cfg *cfg)
418 {
419 struct fsl_mc_command cmd = { 0 };
420 struct dpseci_cmd_congestion_notification *rsp_params;
421 int err;
422
423 cmd.header = mc_encode_cmd_header(
424 DPSECI_CMDID_GET_CONGESTION_NOTIFICATION,
425 cmd_flags,
426 token);
427 err = mc_send_command(mc_io, &cmd);
428 if (err)
429 return err;
430
431 rsp_params = (struct dpseci_cmd_congestion_notification *)cmd.params;
432 cfg->dest_cfg.dest_id = le32_to_cpu(rsp_params->dest_id);
433 cfg->notification_mode = le16_to_cpu(rsp_params->notification_mode);
434 cfg->dest_cfg.priority = rsp_params->priority;
435 cfg->dest_cfg.dest_type = dpseci_get_field(rsp_params->options,
436 CGN_DEST_TYPE);
437 cfg->units = dpseci_get_field(rsp_params->options, CGN_UNITS);
438 cfg->message_iova = le64_to_cpu(rsp_params->message_iova);
439 cfg->message_ctx = le64_to_cpu(rsp_params->message_ctx);
440 cfg->threshold_entry = le32_to_cpu(rsp_params->threshold_entry);
441 cfg->threshold_exit = le32_to_cpu(rsp_params->threshold_exit);
442
443 return 0;
444 }
445