DPDK logo

Elixir Cross Referencer

  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
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2017 Intel Corporation
 */
#include <rte_common.h>
#include <rte_hexdump.h>
#include <rte_cryptodev.h>
#include <rte_cryptodev_pmd.h>
#include <rte_bus_vdev.h>
#include <rte_malloc.h>
#include <rte_cpuflags.h>
#include <rte_reorder.h>
#include <rte_string_fns.h>

#include "rte_cryptodev_scheduler.h"
#include "scheduler_pmd_private.h"

uint8_t cryptodev_scheduler_driver_id;

struct scheduler_init_params {
	struct rte_cryptodev_pmd_init_params def_p;
	uint32_t nb_workers;
	enum rte_cryptodev_scheduler_mode mode;
	char mode_param_str[RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN];
	uint32_t enable_ordering;
	uint16_t wc_pool[RTE_MAX_LCORE];
	uint16_t nb_wc;
	char worker_names[RTE_CRYPTODEV_SCHEDULER_MAX_NB_WORKERS]
			[RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN];
};

#define RTE_CRYPTODEV_VDEV_NAME			("name")
#define RTE_CRYPTODEV_VDEV_WORKER		("worker")
#define RTE_CRYPTODEV_VDEV_MODE			("mode")
#define RTE_CRYPTODEV_VDEV_MODE_PARAM		("mode_param")
#define RTE_CRYPTODEV_VDEV_ORDERING		("ordering")
#define RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG	("max_nb_queue_pairs")
#define RTE_CRYPTODEV_VDEV_SOCKET_ID		("socket_id")
#define RTE_CRYPTODEV_VDEV_COREMASK		("coremask")
#define RTE_CRYPTODEV_VDEV_CORELIST		("corelist")

static const char * const scheduler_valid_params[] = {
	RTE_CRYPTODEV_VDEV_NAME,
	RTE_CRYPTODEV_VDEV_WORKER,
	RTE_CRYPTODEV_VDEV_MODE,
	RTE_CRYPTODEV_VDEV_MODE_PARAM,
	RTE_CRYPTODEV_VDEV_ORDERING,
	RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
	RTE_CRYPTODEV_VDEV_SOCKET_ID,
	RTE_CRYPTODEV_VDEV_COREMASK,
	RTE_CRYPTODEV_VDEV_CORELIST
};

struct scheduler_parse_map {
	const char *name;
	uint32_t val;
};

const struct scheduler_parse_map scheduler_mode_map[] = {
	{RTE_STR(SCHEDULER_MODE_NAME_ROUND_ROBIN),
			CDEV_SCHED_MODE_ROUNDROBIN},
	{RTE_STR(SCHEDULER_MODE_NAME_PKT_SIZE_DISTR),
			CDEV_SCHED_MODE_PKT_SIZE_DISTR},
	{RTE_STR(SCHEDULER_MODE_NAME_FAIL_OVER),
			CDEV_SCHED_MODE_FAILOVER},
	{RTE_STR(SCHEDULER_MODE_NAME_MULTI_CORE),
			CDEV_SCHED_MODE_MULTICORE}
};

const struct scheduler_parse_map scheduler_ordering_map[] = {
		{"enable", 1},
		{"disable", 0}
};

#define CDEV_SCHED_MODE_PARAM_SEP_CHAR		':'

static int
cryptodev_scheduler_create(const char *name,
		struct rte_vdev_device *vdev,
		struct scheduler_init_params *init_params)
{
	struct rte_cryptodev *dev;
	struct scheduler_ctx *sched_ctx;
	uint32_t i;
	int ret;

	dev = rte_cryptodev_pmd_create(name, &vdev->device,
			&init_params->def_p);
	if (dev == NULL) {
		CR_SCHED_LOG(ERR, "driver %s: failed to create cryptodev vdev",
			name);
		return -EFAULT;
	}

	dev->driver_id = cryptodev_scheduler_driver_id;
	dev->dev_ops = rte_crypto_scheduler_pmd_ops;

	sched_ctx = dev->data->dev_private;
	sched_ctx->max_nb_queue_pairs =
			init_params->def_p.max_nb_queue_pairs;

	if (init_params->mode == CDEV_SCHED_MODE_MULTICORE) {
		uint16_t i;

		sched_ctx->nb_wc = init_params->nb_wc;

		for (i = 0; i < sched_ctx->nb_wc; i++) {
			sched_ctx->wc_pool[i] = init_params->wc_pool[i];
			CR_SCHED_LOG(INFO, "  Worker core[%u]=%u added",
				i, sched_ctx->wc_pool[i]);
		}
	}

	if (init_params->mode > CDEV_SCHED_MODE_USERDEFINED &&
			init_params->mode < CDEV_SCHED_MODE_COUNT) {
		union {
			struct rte_cryptodev_scheduler_threshold_option
					threshold_option;
		} option;
		enum rte_cryptodev_schedule_option_type option_type;
		char param_name[RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN] = {0};
		char param_val[RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN] = {0};
		char *s, *end;

		ret = rte_cryptodev_scheduler_mode_set(dev->data->dev_id,
			init_params->mode);
		if (ret < 0) {
			rte_cryptodev_pmd_release_device(dev);
			return ret;
		}

		for (i = 0; i < RTE_DIM(scheduler_mode_map); i++) {
			if (scheduler_mode_map[i].val != sched_ctx->mode)
				continue;

			CR_SCHED_LOG(INFO, "  Scheduling mode = %s",
					scheduler_mode_map[i].name);
			break;
		}

		if (strlen(init_params->mode_param_str) > 0) {
			s = strchr(init_params->mode_param_str,
					CDEV_SCHED_MODE_PARAM_SEP_CHAR);
			if (s == NULL) {
				CR_SCHED_LOG(ERR, "Invalid mode param");
				return -EINVAL;
			}

			strlcpy(param_name, init_params->mode_param_str,
					s - init_params->mode_param_str + 1);
			s++;
			strlcpy(param_val, s,
					RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN);

			switch (init_params->mode) {
			case CDEV_SCHED_MODE_PKT_SIZE_DISTR:
				if (strcmp(param_name,
					RTE_CRYPTODEV_SCHEDULER_PARAM_THRES)
						!= 0) {
					CR_SCHED_LOG(ERR, "Invalid mode param");
					return -EINVAL;
				}
				option_type = CDEV_SCHED_OPTION_THRESHOLD;

				option.threshold_option.threshold =
						strtoul(param_val, &end, 0);
				break;
			default:
				CR_SCHED_LOG(ERR, "Invalid mode param");
				return -EINVAL;
			}

			if (sched_ctx->ops.option_set(dev, option_type,
					(void *)&option) < 0) {
				CR_SCHED_LOG(ERR, "Invalid mode param");
				return -EINVAL;
			}

			RTE_LOG(INFO, PMD, "  Sched mode param (%s = %s)\n",
					param_name, param_val);
		}
	}

	sched_ctx->reordering_enabled = init_params->enable_ordering;

	for (i = 0; i < RTE_DIM(scheduler_ordering_map); i++) {
		if (scheduler_ordering_map[i].val !=
				sched_ctx->reordering_enabled)
			continue;

		CR_SCHED_LOG(INFO, "  Packet ordering = %s",
				scheduler_ordering_map[i].name);

		break;
	}

	for (i = 0; i < init_params->nb_workers; i++) {
		sched_ctx->init_worker_names[sched_ctx->nb_init_workers] =
			rte_zmalloc_socket(
				NULL,
				RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN, 0,
				SOCKET_ID_ANY);

		if (!sched_ctx->init_worker_names[
				sched_ctx->nb_init_workers]) {
			CR_SCHED_LOG(ERR, "driver %s: Insufficient memory",
					name);
			return -ENOMEM;
		}

		strncpy(sched_ctx->init_worker_names[
					sched_ctx->nb_init_workers],
				init_params->worker_names[i],
				RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN - 1);

		sched_ctx->nb_init_workers++;
	}

	/*
	 * Initialize capabilities structure as an empty structure,
	 * in case device information is requested when no workers are attached
	 */
	sched_ctx->capabilities = rte_zmalloc_socket(NULL,
			sizeof(struct rte_cryptodev_capabilities),
			0, SOCKET_ID_ANY);

	if (!sched_ctx->capabilities) {
		CR_SCHED_LOG(ERR, "Not enough memory for capability "
				"information");
		return -ENOMEM;
	}

	return 0;
}

static int
cryptodev_scheduler_remove(struct rte_vdev_device *vdev)
{
	const char *name;
	struct rte_cryptodev *dev;
	struct scheduler_ctx *sched_ctx;

	if (vdev == NULL)
		return -EINVAL;

	name = rte_vdev_device_name(vdev);
	dev = rte_cryptodev_pmd_get_named_dev(name);
	if (dev == NULL)
		return -EINVAL;

	sched_ctx = dev->data->dev_private;

	if (sched_ctx->nb_workers) {
		uint32_t i;

		for (i = 0; i < sched_ctx->nb_workers; i++)
			rte_cryptodev_scheduler_worker_detach(dev->data->dev_id,
					sched_ctx->workers[i].dev_id);
	}

	return rte_cryptodev_pmd_destroy(dev);
}

/** Parse integer from integer argument */
static int
parse_integer_arg(const char *key __rte_unused,
		const char *value, void *extra_args)
{
	int *i = (int *) extra_args;

	*i = atoi(value);
	if (*i < 0) {
		CR_SCHED_LOG(ERR, "Argument has to be positive.");
		return -EINVAL;
	}

	return 0;
}

/** Parse integer from hexadecimal integer argument */
static int
parse_coremask_arg(const char *key __rte_unused,
		const char *value, void *extra_args)
{
	int i, j, val;
	uint16_t idx = 0;
	char c;
	struct scheduler_init_params *params = extra_args;

	params->nb_wc = 0;

	if (value == NULL)
		return -1;
	/* Remove all blank characters ahead and after .
	 * Remove 0x/0X if exists.
	 */
	while (isblank(*value))
		value++;
	if (value[0] == '0' && ((value[1] == 'x') || (value[1] == 'X')))
		value += 2;
	i = strlen(value);
	while ((i > 0) && isblank(value[i - 1]))
		i--;

	if (i == 0)
		return -1;

	for (i = i - 1; i >= 0 && idx < RTE_MAX_LCORE; i--) {
		c = value[i];
		if (isxdigit(c) == 0) {
			/* invalid characters */
			return -1;
		}
		if (isdigit(c))
			val = c - '0';
		else if (isupper(c))
			val = c - 'A' + 10;
		else
			val = c - 'a' + 10;

		for (j = 0; j < 4 && idx < RTE_MAX_LCORE; j++, idx++) {
			if ((1 << j) & val)
				params->wc_pool[params->nb_wc++] = idx;
		}
	}

	return 0;
}

/** Parse integer from list of integers argument */
static int
parse_corelist_arg(const char *key __rte_unused,
		const char *value, void *extra_args)
{
	struct scheduler_init_params *params = extra_args;

	params->nb_wc = 0;

	const char *token = value;

	while (isdigit(token[0])) {
		char *rval;
		unsigned int core = strtoul(token, &rval, 10);

		if (core >= RTE_MAX_LCORE) {
			CR_SCHED_LOG(ERR, "Invalid worker core %u, should be smaller "
				   "than %u.", core, RTE_MAX_LCORE);
		}
		params->wc_pool[params->nb_wc++] = (uint16_t)core;
		token = (const char *)rval;
		if (token[0] == '\0')
			break;
		token++;
	}

	return 0;
}

/** Parse name */
static int
parse_name_arg(const char *key __rte_unused,
		const char *value, void *extra_args)
{
	struct rte_cryptodev_pmd_init_params *params = extra_args;

	if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) {
		CR_SCHED_LOG(ERR, "Invalid name %s, should be less than "
				"%u bytes.", value,
				RTE_CRYPTODEV_NAME_MAX_LEN - 1);
		return -EINVAL;
	}

	strlcpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN);

	return 0;
}

/** Parse worker */
static int
parse_worker_arg(const char *key __rte_unused,
		const char *value, void *extra_args)
{
	struct scheduler_init_params *param = extra_args;

	if (param->nb_workers >= RTE_CRYPTODEV_SCHEDULER_MAX_NB_WORKERS) {
		CR_SCHED_LOG(ERR, "Too many workers.");
		return -ENOMEM;
	}

	strncpy(param->worker_names[param->nb_workers++], value,
			RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN - 1);

	return 0;
}

static int
parse_mode_arg(const char *key __rte_unused,
		const char *value, void *extra_args)
{
	struct scheduler_init_params *param = extra_args;
	uint32_t i;

	for (i = 0; i < RTE_DIM(scheduler_mode_map); i++) {
		if (strcmp(value, scheduler_mode_map[i].name) == 0) {
			param->mode = (enum rte_cryptodev_scheduler_mode)
					scheduler_mode_map[i].val;

			break;
		}
	}

	if (i == RTE_DIM(scheduler_mode_map)) {
		CR_SCHED_LOG(ERR, "Unrecognized input.");
		return -EINVAL;
	}

	return 0;
}

static int
parse_mode_param_arg(const char *key __rte_unused,
		const char *value, void *extra_args)
{
	struct scheduler_init_params *param = extra_args;

	strlcpy(param->mode_param_str, value,
			RTE_CRYPTODEV_SCHEDULER_NAME_MAX_LEN);

	return 0;
}

static int
parse_ordering_arg(const char *key __rte_unused,
		const char *value, void *extra_args)
{
	struct scheduler_init_params *param = extra_args;
	uint32_t i;

	for (i = 0; i < RTE_DIM(scheduler_ordering_map); i++) {
		if (strcmp(value, scheduler_ordering_map[i].name) == 0) {
			param->enable_ordering =
					scheduler_ordering_map[i].val;
			break;
		}
	}

	if (i == RTE_DIM(scheduler_ordering_map)) {
		CR_SCHED_LOG(ERR, "Unrecognized input.");
		return -EINVAL;
	}

	return 0;
}

static int
scheduler_parse_init_params(struct scheduler_init_params *params,
		const char *input_args)
{
	struct rte_kvargs *kvlist = NULL;
	int ret = 0;

	if (params == NULL)
		return -EINVAL;

	if (input_args) {
		kvlist = rte_kvargs_parse(input_args,
				scheduler_valid_params);
		if (kvlist == NULL)
			return -1;

		ret = rte_kvargs_process(kvlist,
				RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
				&parse_integer_arg,
				&params->def_p.max_nb_queue_pairs);
		if (ret < 0)
			goto free_kvlist;

		ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_SOCKET_ID,
				&parse_integer_arg,
				&params->def_p.socket_id);
		if (ret < 0)
			goto free_kvlist;

		ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_COREMASK,
				&parse_coremask_arg,
				params);
		if (ret < 0)
			goto free_kvlist;

		ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_CORELIST,
				&parse_corelist_arg,
				params);
		if (ret < 0)
			goto free_kvlist;

		ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_NAME,
				&parse_name_arg,
				&params->def_p);
		if (ret < 0)
			goto free_kvlist;

		ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_WORKER,
				&parse_worker_arg, params);
		if (ret < 0)
			goto free_kvlist;

		ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_MODE,
				&parse_mode_arg, params);
		if (ret < 0)
			goto free_kvlist;

		ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_MODE_PARAM,
				&parse_mode_param_arg, params);
		if (ret < 0)
			goto free_kvlist;

		ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_ORDERING,
				&parse_ordering_arg, params);
		if (ret < 0)
			goto free_kvlist;
	}

free_kvlist:
	rte_kvargs_free(kvlist);
	return ret;
}

static int
cryptodev_scheduler_probe(struct rte_vdev_device *vdev)
{
	struct scheduler_init_params init_params = {
		.def_p = {
			"",
			sizeof(struct scheduler_ctx),
			rte_socket_id(),
			RTE_CRYPTODEV_PMD_DEFAULT_MAX_NB_QUEUE_PAIRS
		},
		.nb_workers = 0,
		.mode = CDEV_SCHED_MODE_NOT_SET,
		.enable_ordering = 0,
		.worker_names = { {0} }
	};
	const char *name;

	name = rte_vdev_device_name(vdev);
	if (name == NULL)
		return -EINVAL;

	scheduler_parse_init_params(&init_params,
				    rte_vdev_device_args(vdev));


	return cryptodev_scheduler_create(name,
					vdev,
					&init_params);
}

static struct rte_vdev_driver cryptodev_scheduler_pmd_drv = {
	.probe = cryptodev_scheduler_probe,
	.remove = cryptodev_scheduler_remove
};

static struct cryptodev_driver scheduler_crypto_drv;

RTE_PMD_REGISTER_VDEV(CRYPTODEV_NAME_SCHEDULER_PMD,
	cryptodev_scheduler_pmd_drv);
RTE_PMD_REGISTER_PARAM_STRING(CRYPTODEV_NAME_SCHEDULER_PMD,
	"max_nb_queue_pairs=<int> "
	"socket_id=<int> "
	"worker=<name>");
RTE_PMD_REGISTER_CRYPTO_DRIVER(scheduler_crypto_drv,
		cryptodev_scheduler_pmd_drv.driver,
		cryptodev_scheduler_driver_id);