summaryrefslogtreecommitdiff
path: root/lib/librte_cryptodev/rte_cryptodev.c
blob: 6a51eec44d9fd54d1e50b4e8b6298cdccea99bf9 (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
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
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
/*-
 *   BSD LICENSE
 *
 *   Copyright(c) 2015-2016 Intel Corporation. All rights reserved.
 *
 *   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 Intel Corporation nor the names of its
 *       contributors may be used to endorse or promote products derived
 *       from this software without specific prior written permission.
 *
 *   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
 *   OWNER 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 <sys/types.h>
#include <sys/queue.h>
#include <ctype.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>
#include <errno.h>
#include <stdint.h>
#include <inttypes.h>
#include <netinet/in.h>

#include <rte_byteorder.h>
#include <rte_log.h>
#include <rte_debug.h>
#include <rte_dev.h>
#include <rte_interrupts.h>
#include <rte_pci.h>
#include <rte_memory.h>
#include <rte_memcpy.h>
#include <rte_memzone.h>
#include <rte_launch.h>
#include <rte_tailq.h>
#include <rte_eal.h>
#include <rte_per_lcore.h>
#include <rte_lcore.h>
#include <rte_atomic.h>
#include <rte_branch_prediction.h>
#include <rte_common.h>
#include <rte_mempool.h>
#include <rte_malloc.h>
#include <rte_mbuf.h>
#include <rte_errno.h>
#include <rte_spinlock.h>
#include <rte_string_fns.h>

#include "rte_crypto.h"
#include "rte_cryptodev.h"
#include "rte_cryptodev_pmd.h"

struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];

struct rte_cryptodev *rte_cryptodevs = &rte_crypto_devices[0];

static struct rte_cryptodev_global cryptodev_globals = {
		.devs			= &rte_crypto_devices[0],
		.data			= { NULL },
		.nb_devs		= 0,
		.max_devs		= RTE_CRYPTO_MAX_DEVS
};

struct rte_cryptodev_global *rte_cryptodev_globals = &cryptodev_globals;

/* spinlock for crypto device callbacks */
static rte_spinlock_t rte_cryptodev_cb_lock = RTE_SPINLOCK_INITIALIZER;


/**
 * The user application callback description.
 *
 * It contains callback address to be registered by user application,
 * the pointer to the parameters for callback, and the event type.
 */
struct rte_cryptodev_callback {
	TAILQ_ENTRY(rte_cryptodev_callback) next; /**< Callbacks list */
	rte_cryptodev_cb_fn cb_fn;		/**< Callback address */
	void *cb_arg;				/**< Parameter for callback */
	enum rte_cryptodev_event_type event;	/**< Interrupt event type */
	uint32_t active;			/**< Callback is executing */
};

#define RTE_CRYPTODEV_VDEV_NAME				("name")
#define RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG		("max_nb_queue_pairs")
#define RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG		("max_nb_sessions")
#define RTE_CRYPTODEV_VDEV_SOCKET_ID			("socket_id")

static const char *cryptodev_vdev_valid_params[] = {
	RTE_CRYPTODEV_VDEV_NAME,
	RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
	RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
	RTE_CRYPTODEV_VDEV_SOCKET_ID
};

static uint8_t
number_of_sockets(void)
{
	int sockets = 0;
	int i;
	const struct rte_memseg *ms = rte_eal_get_physmem_layout();

	for (i = 0; ((i < RTE_MAX_MEMSEG) && (ms[i].addr != NULL)); i++) {
		if (sockets < ms[i].socket_id)
			sockets = ms[i].socket_id;
	}

	/* Number of sockets = maximum socket_id + 1 */
	return ++sockets;
}

/** 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) {
		CDEV_LOG_ERR("Argument has to be positive.");
		return -1;
	}

	return 0;
}

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

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

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

	return 0;
}

int
rte_cryptodev_parse_vdev_init_params(struct rte_crypto_vdev_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,
				cryptodev_vdev_valid_params);
		if (kvlist == NULL)
			return -1;

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

		ret = rte_kvargs_process(kvlist,
					RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
					&parse_integer_arg,
					&params->max_nb_sessions);
		if (ret < 0)
			goto free_kvlist;

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

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

		if (params->socket_id >= number_of_sockets()) {
			CDEV_LOG_ERR("Invalid socket id specified to create "
				"the virtual crypto device on");
			goto free_kvlist;
		}
	}

free_kvlist:
	rte_kvargs_free(kvlist);
	return ret;
}

const char *
rte_cryptodev_get_feature_name(uint64_t flag)
{
	switch (flag) {
	case RTE_CRYPTODEV_FF_SYMMETRIC_CRYPTO:
		return "SYMMETRIC_CRYPTO";
	case RTE_CRYPTODEV_FF_ASYMMETRIC_CRYPTO:
		return "ASYMMETRIC_CRYPTO";
	case RTE_CRYPTODEV_FF_SYM_OPERATION_CHAINING:
		return "SYM_OPERATION_CHAINING";
	case RTE_CRYPTODEV_FF_CPU_SSE:
		return "CPU_SSE";
	case RTE_CRYPTODEV_FF_CPU_AVX:
		return "CPU_AVX";
	case RTE_CRYPTODEV_FF_CPU_AVX2:
		return "CPU_AVX2";
	case RTE_CRYPTODEV_FF_CPU_AESNI:
		return "CPU_AESNI";
	case RTE_CRYPTODEV_FF_HW_ACCELERATED:
		return "HW_ACCELERATED";
	case RTE_CRYPTODEV_FF_MBUF_SCATTER_GATHER:
		return "MBUF_SCATTER_GATHER";
	case RTE_CRYPTODEV_FF_CPU_NEON:
		return "CPU_NEON";
	case RTE_CRYPTODEV_FF_CPU_ARM_CE:
		return "CPU_ARM_CE";
	default:
		return NULL;
	}
}

int
rte_cryptodev_create_vdev(const char *name, const char *args)
{
	return rte_eal_vdev_init(name, args);
}

int
rte_cryptodev_get_dev_id(const char *name)
{
	unsigned i;

	if (name == NULL)
		return -1;

	for (i = 0; i < rte_cryptodev_globals->nb_devs; i++)
		if ((strcmp(rte_cryptodev_globals->devs[i].data->name, name)
				== 0) &&
				(rte_cryptodev_globals->devs[i].attached ==
						RTE_CRYPTODEV_ATTACHED))
			return i;

	return -1;
}

uint8_t
rte_cryptodev_count(void)
{
	return rte_cryptodev_globals->nb_devs;
}

uint8_t
rte_cryptodev_count_devtype(enum rte_cryptodev_type type)
{
	uint8_t i, dev_count = 0;

	for (i = 0; i < rte_cryptodev_globals->max_devs; i++)
		if (rte_cryptodev_globals->devs[i].dev_type == type &&
			rte_cryptodev_globals->devs[i].attached ==
					RTE_CRYPTODEV_ATTACHED)
			dev_count++;

	return dev_count;
}

int
rte_cryptodev_socket_id(uint8_t dev_id)
{
	struct rte_cryptodev *dev;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
		return -1;

	dev = rte_cryptodev_pmd_get_dev(dev_id);

	return dev->data->socket_id;
}

static inline int
rte_cryptodev_data_alloc(uint8_t dev_id, struct rte_cryptodev_data **data,
		int socket_id)
{
	char mz_name[RTE_CRYPTODEV_NAME_MAX_LEN];
	const struct rte_memzone *mz;
	int n;

	/* generate memzone name */
	n = snprintf(mz_name, sizeof(mz_name), "rte_cryptodev_data_%u", dev_id);
	if (n >= (int)sizeof(mz_name))
		return -EINVAL;

	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
		mz = rte_memzone_reserve(mz_name,
				sizeof(struct rte_cryptodev_data),
				socket_id, 0);
	} else
		mz = rte_memzone_lookup(mz_name);

	if (mz == NULL)
		return -ENOMEM;

	*data = mz->addr;
	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
		memset(*data, 0, sizeof(struct rte_cryptodev_data));

	return 0;
}

static uint8_t
rte_cryptodev_find_free_device_index(void)
{
	uint8_t dev_id;

	for (dev_id = 0; dev_id < RTE_CRYPTO_MAX_DEVS; dev_id++) {
		if (rte_crypto_devices[dev_id].attached ==
				RTE_CRYPTODEV_DETACHED)
			return dev_id;
	}
	return RTE_CRYPTO_MAX_DEVS;
}

struct rte_cryptodev *
rte_cryptodev_pmd_allocate(const char *name, int socket_id)
{
	struct rte_cryptodev *cryptodev;
	uint8_t dev_id;

	if (rte_cryptodev_pmd_get_named_dev(name) != NULL) {
		CDEV_LOG_ERR("Crypto device with name %s already "
				"allocated!", name);
		return NULL;
	}

	dev_id = rte_cryptodev_find_free_device_index();
	if (dev_id == RTE_CRYPTO_MAX_DEVS) {
		CDEV_LOG_ERR("Reached maximum number of crypto devices");
		return NULL;
	}

	cryptodev = rte_cryptodev_pmd_get_dev(dev_id);

	if (cryptodev->data == NULL) {
		struct rte_cryptodev_data *cryptodev_data =
				cryptodev_globals.data[dev_id];

		int retval = rte_cryptodev_data_alloc(dev_id, &cryptodev_data,
				socket_id);

		if (retval < 0 || cryptodev_data == NULL)
			return NULL;

		cryptodev->data = cryptodev_data;

		snprintf(cryptodev->data->name, RTE_CRYPTODEV_NAME_MAX_LEN,
				"%s", name);

		cryptodev->data->dev_id = dev_id;
		cryptodev->data->socket_id = socket_id;
		cryptodev->data->dev_started = 0;

		cryptodev->attached = RTE_CRYPTODEV_ATTACHED;

		cryptodev_globals.nb_devs++;
	}

	return cryptodev;
}

int
rte_cryptodev_pmd_release_device(struct rte_cryptodev *cryptodev)
{
	int ret;

	if (cryptodev == NULL)
		return -EINVAL;

	ret = rte_cryptodev_close(cryptodev->data->dev_id);
	if (ret < 0)
		return ret;

	cryptodev->attached = RTE_CRYPTODEV_DETACHED;
	cryptodev_globals.nb_devs--;
	return 0;
}

struct rte_cryptodev *
rte_cryptodev_pmd_virtual_dev_init(const char *name, size_t dev_private_size,
		int socket_id)
{
	struct rte_cryptodev *cryptodev;

	/* allocate device structure */
	cryptodev = rte_cryptodev_pmd_allocate(name, socket_id);
	if (cryptodev == NULL)
		return NULL;

	/* allocate private device structure */
	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
		cryptodev->data->dev_private =
				rte_zmalloc_socket("cryptodev device private",
						dev_private_size,
						RTE_CACHE_LINE_SIZE,
						socket_id);

		if (cryptodev->data->dev_private == NULL)
			rte_panic("Cannot allocate memzone for private device"
					" data");
	}

	/* initialise user call-back tail queue */
	TAILQ_INIT(&(cryptodev->link_intr_cbs));

	return cryptodev;
}

int
rte_cryptodev_pci_probe(struct rte_pci_driver *pci_drv,
			struct rte_pci_device *pci_dev)
{
	struct rte_cryptodev_driver *cryptodrv;
	struct rte_cryptodev *cryptodev;

	char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];

	int retval;

	cryptodrv = (struct rte_cryptodev_driver *)pci_drv;
	if (cryptodrv == NULL)
		return -ENODEV;

	rte_eal_pci_device_name(&pci_dev->addr, cryptodev_name,
			sizeof(cryptodev_name));

	cryptodev = rte_cryptodev_pmd_allocate(cryptodev_name, rte_socket_id());
	if (cryptodev == NULL)
		return -ENOMEM;

	if (rte_eal_process_type() == RTE_PROC_PRIMARY) {
		cryptodev->data->dev_private =
				rte_zmalloc_socket(
						"cryptodev private structure",
						cryptodrv->dev_private_size,
						RTE_CACHE_LINE_SIZE,
						rte_socket_id());

		if (cryptodev->data->dev_private == NULL)
			rte_panic("Cannot allocate memzone for private "
					"device data");
	}

	cryptodev->pci_dev = pci_dev;
	cryptodev->driver = cryptodrv;

	/* init user callbacks */
	TAILQ_INIT(&(cryptodev->link_intr_cbs));

	/* Invoke PMD device initialization function */
	retval = (*cryptodrv->cryptodev_init)(cryptodrv, cryptodev);
	if (retval == 0)
		return 0;

	CDEV_LOG_ERR("driver %s: crypto_dev_init(vendor_id=0x%x device_id=0x%x)"
			" failed", pci_drv->driver.name,
			(unsigned) pci_dev->id.vendor_id,
			(unsigned) pci_dev->id.device_id);

	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
		rte_free(cryptodev->data->dev_private);

	cryptodev->attached = RTE_CRYPTODEV_DETACHED;
	cryptodev_globals.nb_devs--;

	return -ENXIO;
}

int
rte_cryptodev_pci_remove(struct rte_pci_device *pci_dev)
{
	const struct rte_cryptodev_driver *cryptodrv;
	struct rte_cryptodev *cryptodev;
	char cryptodev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
	int ret;

	if (pci_dev == NULL)
		return -EINVAL;

	rte_eal_pci_device_name(&pci_dev->addr, cryptodev_name,
			sizeof(cryptodev_name));

	cryptodev = rte_cryptodev_pmd_get_named_dev(cryptodev_name);
	if (cryptodev == NULL)
		return -ENODEV;

	cryptodrv = (const struct rte_cryptodev_driver *)pci_dev->driver;
	if (cryptodrv == NULL)
		return -ENODEV;

	/* Invoke PMD device uninit function */
	if (*cryptodrv->cryptodev_uninit) {
		ret = (*cryptodrv->cryptodev_uninit)(cryptodrv, cryptodev);
		if (ret)
			return ret;
	}

	/* free crypto device */
	rte_cryptodev_pmd_release_device(cryptodev);

	if (rte_eal_process_type() == RTE_PROC_PRIMARY)
		rte_free(cryptodev->data->dev_private);

	cryptodev->pci_dev = NULL;
	cryptodev->driver = NULL;
	cryptodev->data = NULL;

	return 0;
}

uint16_t
rte_cryptodev_queue_pair_count(uint8_t dev_id)
{
	struct rte_cryptodev *dev;

	dev = &rte_crypto_devices[dev_id];
	return dev->data->nb_queue_pairs;
}

static int
rte_cryptodev_queue_pairs_config(struct rte_cryptodev *dev, uint16_t nb_qpairs,
		int socket_id)
{
	struct rte_cryptodev_info dev_info;
	void **qp;
	unsigned i;

	if ((dev == NULL) || (nb_qpairs < 1)) {
		CDEV_LOG_ERR("invalid param: dev %p, nb_queues %u",
							dev, nb_qpairs);
		return -EINVAL;
	}

	CDEV_LOG_DEBUG("Setup %d queues pairs on device %u",
			nb_qpairs, dev->data->dev_id);

	memset(&dev_info, 0, sizeof(struct rte_cryptodev_info));

	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP);
	(*dev->dev_ops->dev_infos_get)(dev, &dev_info);

	if (nb_qpairs > (dev_info.max_nb_queue_pairs)) {
		CDEV_LOG_ERR("Invalid num queue_pairs (%u) for dev %u",
				nb_qpairs, dev->data->dev_id);
	    return -EINVAL;
	}

	if (dev->data->queue_pairs == NULL) { /* first time configuration */
		dev->data->queue_pairs = rte_zmalloc_socket(
				"cryptodev->queue_pairs",
				sizeof(dev->data->queue_pairs[0]) * nb_qpairs,
				RTE_CACHE_LINE_SIZE, socket_id);

		if (dev->data->queue_pairs == NULL) {
			dev->data->nb_queue_pairs = 0;
			CDEV_LOG_ERR("failed to get memory for qp meta data, "
							"nb_queues %u",
							nb_qpairs);
			return -(ENOMEM);
		}
	} else { /* re-configure */
		int ret;
		uint16_t old_nb_queues = dev->data->nb_queue_pairs;

		qp = dev->data->queue_pairs;

		RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_release,
				-ENOTSUP);

		for (i = nb_qpairs; i < old_nb_queues; i++) {
			ret = (*dev->dev_ops->queue_pair_release)(dev, i);
			if (ret < 0)
				return ret;
		}

		qp = rte_realloc(qp, sizeof(qp[0]) * nb_qpairs,
				RTE_CACHE_LINE_SIZE);
		if (qp == NULL) {
			CDEV_LOG_ERR("failed to realloc qp meta data,"
						" nb_queues %u", nb_qpairs);
			return -(ENOMEM);
		}

		if (nb_qpairs > old_nb_queues) {
			uint16_t new_qs = nb_qpairs - old_nb_queues;

			memset(qp + old_nb_queues, 0,
				sizeof(qp[0]) * new_qs);
		}

		dev->data->queue_pairs = qp;

	}
	dev->data->nb_queue_pairs = nb_qpairs;
	return 0;
}

int
rte_cryptodev_queue_pair_start(uint8_t dev_id, uint16_t queue_pair_id)
{
	struct rte_cryptodev *dev;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
		return -EINVAL;
	}

	dev = &rte_crypto_devices[dev_id];
	if (queue_pair_id >= dev->data->nb_queue_pairs) {
		CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
		return -EINVAL;
	}

	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_start, -ENOTSUP);

	return dev->dev_ops->queue_pair_start(dev, queue_pair_id);

}

int
rte_cryptodev_queue_pair_stop(uint8_t dev_id, uint16_t queue_pair_id)
{
	struct rte_cryptodev *dev;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
		return -EINVAL;
	}

	dev = &rte_crypto_devices[dev_id];
	if (queue_pair_id >= dev->data->nb_queue_pairs) {
		CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
		return -EINVAL;
	}

	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_stop, -ENOTSUP);

	return dev->dev_ops->queue_pair_stop(dev, queue_pair_id);

}

static int
rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
		unsigned nb_objs, unsigned obj_cache_size, int socket_id);

int
rte_cryptodev_configure(uint8_t dev_id, struct rte_cryptodev_config *config)
{
	struct rte_cryptodev *dev;
	int diag;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
		return -EINVAL;
	}

	dev = &rte_crypto_devices[dev_id];

	if (dev->data->dev_started) {
		CDEV_LOG_ERR(
		    "device %d must be stopped to allow configuration", dev_id);
		return -EBUSY;
	}

	/* Setup new number of queue pairs and reconfigure device. */
	diag = rte_cryptodev_queue_pairs_config(dev, config->nb_queue_pairs,
			config->socket_id);
	if (diag != 0) {
		CDEV_LOG_ERR("dev%d rte_crypto_dev_queue_pairs_config = %d",
				dev_id, diag);
		return diag;
	}

	/* Setup Session mempool for device */
	return rte_cryptodev_sym_session_pool_create(dev,
			config->session_mp.nb_objs,
			config->session_mp.cache_size,
			config->socket_id);
}


int
rte_cryptodev_start(uint8_t dev_id)
{
	struct rte_cryptodev *dev;
	int diag;

	CDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id);

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
		return -EINVAL;
	}

	dev = &rte_crypto_devices[dev_id];

	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP);

	if (dev->data->dev_started != 0) {
		CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already started",
			dev_id);
		return 0;
	}

	diag = (*dev->dev_ops->dev_start)(dev);
	if (diag == 0)
		dev->data->dev_started = 1;
	else
		return diag;

	return 0;
}

void
rte_cryptodev_stop(uint8_t dev_id)
{
	struct rte_cryptodev *dev;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
		return;
	}

	dev = &rte_crypto_devices[dev_id];

	RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop);

	if (dev->data->dev_started == 0) {
		CDEV_LOG_ERR("Device with dev_id=%" PRIu8 " already stopped",
			dev_id);
		return;
	}

	dev->data->dev_started = 0;
	(*dev->dev_ops->dev_stop)(dev);
}

int
rte_cryptodev_close(uint8_t dev_id)
{
	struct rte_cryptodev *dev;
	int retval;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
		return -1;
	}

	dev = &rte_crypto_devices[dev_id];

	/* Device must be stopped before it can be closed */
	if (dev->data->dev_started == 1) {
		CDEV_LOG_ERR("Device %u must be stopped before closing",
				dev_id);
		return -EBUSY;
	}

	/* We can't close the device if there are outstanding sessions in use */
	if (dev->data->session_pool != NULL) {
		if (!rte_mempool_full(dev->data->session_pool)) {
			CDEV_LOG_ERR("dev_id=%u close failed, session mempool "
					"has sessions still in use, free "
					"all sessions before calling close",
					(unsigned)dev_id);
			return -EBUSY;
		}
	}

	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP);
	retval = (*dev->dev_ops->dev_close)(dev);

	if (retval < 0)
		return retval;

	return 0;
}

int
rte_cryptodev_queue_pair_setup(uint8_t dev_id, uint16_t queue_pair_id,
		const struct rte_cryptodev_qp_conf *qp_conf, int socket_id)
{
	struct rte_cryptodev *dev;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
		return -EINVAL;
	}

	dev = &rte_crypto_devices[dev_id];
	if (queue_pair_id >= dev->data->nb_queue_pairs) {
		CDEV_LOG_ERR("Invalid queue_pair_id=%d", queue_pair_id);
		return -EINVAL;
	}

	if (dev->data->dev_started) {
		CDEV_LOG_ERR(
		    "device %d must be stopped to allow configuration", dev_id);
		return -EBUSY;
	}

	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_pair_setup, -ENOTSUP);

	return (*dev->dev_ops->queue_pair_setup)(dev, queue_pair_id, qp_conf,
			socket_id);
}


int
rte_cryptodev_stats_get(uint8_t dev_id, struct rte_cryptodev_stats *stats)
{
	struct rte_cryptodev *dev;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
		return -ENODEV;
	}

	if (stats == NULL) {
		CDEV_LOG_ERR("Invalid stats ptr");
		return -EINVAL;
	}

	dev = &rte_crypto_devices[dev_id];
	memset(stats, 0, sizeof(*stats));

	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->stats_get, -ENOTSUP);
	(*dev->dev_ops->stats_get)(dev, stats);
	return 0;
}

void
rte_cryptodev_stats_reset(uint8_t dev_id)
{
	struct rte_cryptodev *dev;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
		return;
	}

	dev = &rte_crypto_devices[dev_id];

	RTE_FUNC_PTR_OR_RET(*dev->dev_ops->stats_reset);
	(*dev->dev_ops->stats_reset)(dev);
}


void
rte_cryptodev_info_get(uint8_t dev_id, struct rte_cryptodev_info *dev_info)
{
	struct rte_cryptodev *dev;

	if (dev_id >= cryptodev_globals.nb_devs) {
		CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
		return;
	}

	dev = &rte_crypto_devices[dev_id];

	memset(dev_info, 0, sizeof(struct rte_cryptodev_info));

	RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_infos_get);
	(*dev->dev_ops->dev_infos_get)(dev, dev_info);

	dev_info->pci_dev = dev->pci_dev;
	if (dev->driver)
		dev_info->driver_name = dev->driver->pci_drv.driver.name;
}


int
rte_cryptodev_callback_register(uint8_t dev_id,
			enum rte_cryptodev_event_type event,
			rte_cryptodev_cb_fn cb_fn, void *cb_arg)
{
	struct rte_cryptodev *dev;
	struct rte_cryptodev_callback *user_cb;

	if (!cb_fn)
		return -EINVAL;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
		return -EINVAL;
	}

	dev = &rte_crypto_devices[dev_id];
	rte_spinlock_lock(&rte_cryptodev_cb_lock);

	TAILQ_FOREACH(user_cb, &(dev->link_intr_cbs), next) {
		if (user_cb->cb_fn == cb_fn &&
			user_cb->cb_arg == cb_arg &&
			user_cb->event == event) {
			break;
		}
	}

	/* create a new callback. */
	if (user_cb == NULL) {
		user_cb = rte_zmalloc("INTR_USER_CALLBACK",
				sizeof(struct rte_cryptodev_callback), 0);
		if (user_cb != NULL) {
			user_cb->cb_fn = cb_fn;
			user_cb->cb_arg = cb_arg;
			user_cb->event = event;
			TAILQ_INSERT_TAIL(&(dev->link_intr_cbs), user_cb, next);
		}
	}

	rte_spinlock_unlock(&rte_cryptodev_cb_lock);
	return (user_cb == NULL) ? -ENOMEM : 0;
}

int
rte_cryptodev_callback_unregister(uint8_t dev_id,
			enum rte_cryptodev_event_type event,
			rte_cryptodev_cb_fn cb_fn, void *cb_arg)
{
	int ret;
	struct rte_cryptodev *dev;
	struct rte_cryptodev_callback *cb, *next;

	if (!cb_fn)
		return -EINVAL;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%" PRIu8, dev_id);
		return -EINVAL;
	}

	dev = &rte_crypto_devices[dev_id];
	rte_spinlock_lock(&rte_cryptodev_cb_lock);

	ret = 0;
	for (cb = TAILQ_FIRST(&dev->link_intr_cbs); cb != NULL; cb = next) {

		next = TAILQ_NEXT(cb, next);

		if (cb->cb_fn != cb_fn || cb->event != event ||
				(cb->cb_arg != (void *)-1 &&
				cb->cb_arg != cb_arg))
			continue;

		/*
		 * if this callback is not executing right now,
		 * then remove it.
		 */
		if (cb->active == 0) {
			TAILQ_REMOVE(&(dev->link_intr_cbs), cb, next);
			rte_free(cb);
		} else {
			ret = -EAGAIN;
		}
	}

	rte_spinlock_unlock(&rte_cryptodev_cb_lock);
	return ret;
}

void
rte_cryptodev_pmd_callback_process(struct rte_cryptodev *dev,
	enum rte_cryptodev_event_type event)
{
	struct rte_cryptodev_callback *cb_lst;
	struct rte_cryptodev_callback dev_cb;

	rte_spinlock_lock(&rte_cryptodev_cb_lock);
	TAILQ_FOREACH(cb_lst, &(dev->link_intr_cbs), next) {
		if (cb_lst->cb_fn == NULL || cb_lst->event != event)
			continue;
		dev_cb = *cb_lst;
		cb_lst->active = 1;
		rte_spinlock_unlock(&rte_cryptodev_cb_lock);
		dev_cb.cb_fn(dev->data->dev_id, dev_cb.event,
						dev_cb.cb_arg);
		rte_spinlock_lock(&rte_cryptodev_cb_lock);
		cb_lst->active = 0;
	}
	rte_spinlock_unlock(&rte_cryptodev_cb_lock);
}


static void
rte_cryptodev_sym_session_init(struct rte_mempool *mp,
		void *opaque_arg,
		void *_sess,
		__rte_unused unsigned i)
{
	struct rte_cryptodev_sym_session *sess = _sess;
	struct rte_cryptodev *dev = opaque_arg;

	memset(sess, 0, mp->elt_size);

	sess->dev_id = dev->data->dev_id;
	sess->dev_type = dev->dev_type;
	sess->mp = mp;

	if (dev->dev_ops->session_initialize)
		(*dev->dev_ops->session_initialize)(mp, sess);
}

static int
rte_cryptodev_sym_session_pool_create(struct rte_cryptodev *dev,
		unsigned nb_objs, unsigned obj_cache_size, int socket_id)
{
	char mp_name[RTE_CRYPTODEV_NAME_MAX_LEN];
	unsigned priv_sess_size;

	unsigned n = snprintf(mp_name, sizeof(mp_name), "cdev_%d_sess_mp",
			dev->data->dev_id);
	if (n > sizeof(mp_name)) {
		CDEV_LOG_ERR("Unable to create unique name for session mempool");
		return -ENOMEM;
	}

	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_get_size, -ENOTSUP);
	priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
	if (priv_sess_size == 0) {
		CDEV_LOG_ERR("%s returned and invalid private session size ",
						dev->data->name);
		return -ENOMEM;
	}

	unsigned elt_size = sizeof(struct rte_cryptodev_sym_session) +
			priv_sess_size;

	dev->data->session_pool = rte_mempool_lookup(mp_name);
	if (dev->data->session_pool != NULL) {
		if ((dev->data->session_pool->elt_size != elt_size) ||
				(dev->data->session_pool->cache_size <
				obj_cache_size) ||
				(dev->data->session_pool->size < nb_objs)) {

			CDEV_LOG_ERR("%s mempool already exists with different"
					" initialization parameters", mp_name);
			dev->data->session_pool = NULL;
			return -ENOMEM;
		}
	} else {
		dev->data->session_pool = rte_mempool_create(
				mp_name, /* mempool name */
				nb_objs, /* number of elements*/
				elt_size, /* element size*/
				obj_cache_size, /* Cache size*/
				0, /* private data size */
				NULL, /* obj initialization constructor */
				NULL, /* obj initialization constructor arg */
				rte_cryptodev_sym_session_init,
				/**< obj constructor*/
				dev, /* obj constructor arg */
				socket_id, /* socket id */
				0); /* flags */

		if (dev->data->session_pool == NULL) {
			CDEV_LOG_ERR("%s mempool allocation failed", mp_name);
			return -ENOMEM;
		}
	}

	CDEV_LOG_DEBUG("%s mempool created!", mp_name);
	return 0;
}

struct rte_cryptodev_sym_session *
rte_cryptodev_sym_session_create(uint8_t dev_id,
		struct rte_crypto_sym_xform *xform)
{
	struct rte_cryptodev *dev;
	struct rte_cryptodev_sym_session *sess;
	void *_sess;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
		return NULL;
	}

	dev = &rte_crypto_devices[dev_id];

	/* Allocate a session structure from the session pool */
	if (rte_mempool_get(dev->data->session_pool, &_sess)) {
		CDEV_LOG_ERR("Couldn't get object from session mempool");
		return NULL;
	}

	sess = (struct rte_cryptodev_sym_session *)_sess;

	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
	if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
			NULL) {
		CDEV_LOG_ERR("dev_id %d failed to configure session details",
				dev_id);

		/* Return session to mempool */
		rte_mempool_put(sess->mp, _sess);
		return NULL;
	}

	return sess;
}

struct rte_cryptodev_sym_session *
rte_cryptodev_sym_session_free(uint8_t dev_id,
		struct rte_cryptodev_sym_session *sess)
{
	struct rte_cryptodev *dev;

	if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
		CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
		return sess;
	}

	dev = &rte_crypto_devices[dev_id];

	/* Check the session belongs to this device type */
	if (sess->dev_type != dev->dev_type)
		return sess;

	/* Let device implementation clear session material */
	RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
	dev->dev_ops->session_clear(dev, (void *)sess->_private);

	/* Return session to mempool */
	rte_mempool_put(sess->mp, (void *)sess);

	return NULL;
}

/** Initialise rte_crypto_op mempool element */
static void
rte_crypto_op_init(struct rte_mempool *mempool,
		void *opaque_arg,
		void *_op_data,
		__rte_unused unsigned i)
{
	struct rte_crypto_op *op = _op_data;
	enum rte_crypto_op_type type = *(enum rte_crypto_op_type *)opaque_arg;

	memset(_op_data, 0, mempool->elt_size);

	__rte_crypto_op_reset(op, type);

	op->phys_addr = rte_mem_virt2phy(_op_data);
	op->mempool = mempool;
}


struct rte_mempool *
rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
		unsigned nb_elts, unsigned cache_size, uint16_t priv_size,
		int socket_id)
{
	struct rte_crypto_op_pool_private *priv;

	unsigned elt_size = sizeof(struct rte_crypto_op) +
			sizeof(struct rte_crypto_sym_op) +
			priv_size;

	/* lookup mempool in case already allocated */
	struct rte_mempool *mp = rte_mempool_lookup(name);

	if (mp != NULL) {
		priv = (struct rte_crypto_op_pool_private *)
				rte_mempool_get_priv(mp);

		if (mp->elt_size != elt_size ||
				mp->cache_size < cache_size ||
				mp->size < nb_elts ||
				priv->priv_size <  priv_size) {
			mp = NULL;
			CDEV_LOG_ERR("Mempool %s already exists but with "
					"incompatible parameters", name);
			return NULL;
		}
		return mp;
	}

	mp = rte_mempool_create(
			name,
			nb_elts,
			elt_size,
			cache_size,
			sizeof(struct rte_crypto_op_pool_private),
			NULL,
			NULL,
			rte_crypto_op_init,
			&type,
			socket_id,
			0);

	if (mp == NULL) {
		CDEV_LOG_ERR("Failed to create mempool %s", name);
		return NULL;
	}

	priv = (struct rte_crypto_op_pool_private *)
			rte_mempool_get_priv(mp);

	priv->priv_size = priv_size;
	priv->type = type;

	return mp;
}

int
rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
{
	struct rte_cryptodev *dev = NULL;
	uint32_t i = 0;

	if (name == NULL)
		return -EINVAL;

	for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
		int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
				"%s_%u", dev_name_prefix, i);

		if (ret < 0)
			return ret;

		dev = rte_cryptodev_pmd_get_named_dev(name);
		if (!dev)
			return 0;
	}

	return -1;
}