[ceph.git] / ceph / src / spdk / dpdk / drivers / crypto / kasumi / rte_kasumi_pmd_ops.c

/* SPDX-License-Identifier: BSD-3-Clause
 * Copyright(c) 2016-2018 Intel Corporation
 */

#include <string.h>

#include <rte_common.h>
#include <rte_malloc.h>
#include <rte_cryptodev_pmd.h>

#include "rte_kasumi_pmd_private.h"

static const struct rte_cryptodev_capabilities kasumi_pmd_capabilities[] = {
	{	/* KASUMI (F9) */
		.op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
		{.sym = {
			.xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
			{.auth = {
				.algo = RTE_CRYPTO_AUTH_KASUMI_F9,
				.block_size = 8,
				.key_size = {
					.min = 16,
					.max = 16,
					.increment = 0
				},
				.digest_size = {
					.min = 4,
					.max = 4,
					.increment = 0
				},
				.iv_size = { 0 }
			}, }
		}, }
	},
	{	/* KASUMI (F8) */
		.op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
		{.sym = {
			.xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
			{.cipher = {
				.algo = RTE_CRYPTO_CIPHER_KASUMI_F8,
				.block_size = 8,
				.key_size = {
					.min = 16,
					.max = 16,
					.increment = 0
				},
				.iv_size = {
					.min = 8,
					.max = 8,
					.increment = 0
				}
			}, }
		}, }
	},
	RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
};

/** Configure device */
static int
kasumi_pmd_config(__rte_unused struct rte_cryptodev *dev,
		__rte_unused struct rte_cryptodev_config *config)
{
	return 0;
}

/** Start device */
static int
kasumi_pmd_start(__rte_unused struct rte_cryptodev *dev)
{
	return 0;
}

/** Stop device */
static void
kasumi_pmd_stop(__rte_unused struct rte_cryptodev *dev)
{
}

/** Close device */
static int
kasumi_pmd_close(__rte_unused struct rte_cryptodev *dev)
{
	return 0;
}


/** Get device statistics */
static void
kasumi_pmd_stats_get(struct rte_cryptodev *dev,
		struct rte_cryptodev_stats *stats)
{
	int qp_id;

	for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
		struct kasumi_qp *qp = dev->data->queue_pairs[qp_id];

		stats->enqueued_count += qp->qp_stats.enqueued_count;
		stats->dequeued_count += qp->qp_stats.dequeued_count;

		stats->enqueue_err_count += qp->qp_stats.enqueue_err_count;
		stats->dequeue_err_count += qp->qp_stats.dequeue_err_count;
	}
}

/** Reset device statistics */
static void
kasumi_pmd_stats_reset(struct rte_cryptodev *dev)
{
	int qp_id;

	for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
		struct kasumi_qp *qp = dev->data->queue_pairs[qp_id];

		memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
	}
}


/** Get device info */
static void
kasumi_pmd_info_get(struct rte_cryptodev *dev,
		struct rte_cryptodev_info *dev_info)
{
	struct kasumi_private *internals = dev->data->dev_private;

	if (dev_info != NULL) {
		dev_info->driver_id = dev->driver_id;
		dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
		/* No limit of number of sessions */
		dev_info->sym.max_nb_sessions = 0;
		dev_info->feature_flags = dev->feature_flags;
		dev_info->capabilities = kasumi_pmd_capabilities;
	}
}

/** Release queue pair */
static int
kasumi_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
{
	struct kasumi_qp *qp = dev->data->queue_pairs[qp_id];

	if (qp != NULL) {
		rte_ring_free(qp->processed_ops);
		rte_free(qp);
		dev->data->queue_pairs[qp_id] = NULL;
	}
	return 0;
}

/** set a unique name for the queue pair based on its name, dev_id and qp_id */
static int
kasumi_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
		struct kasumi_qp *qp)
{
	unsigned n = snprintf(qp->name, sizeof(qp->name),
			"kasumi_pmd_%u_qp_%u",
			dev->data->dev_id, qp->id);

	if (n >= sizeof(qp->name))
		return -1;

	return 0;
}

/** Create a ring to place processed ops on */
static struct rte_ring *
kasumi_pmd_qp_create_processed_ops_ring(struct kasumi_qp *qp,
		unsigned ring_size, int socket_id)
{
	struct rte_ring *r;

	r = rte_ring_lookup(qp->name);
	if (r) {
		if (rte_ring_get_size(r) == ring_size) {
			KASUMI_LOG(INFO, "Reusing existing ring %s"
					" for processed packets",
					 qp->name);
			return r;
		}

		KASUMI_LOG(ERR, "Unable to reuse existing ring %s"
				" for processed packets",
				 qp->name);
		return NULL;
	}

	return rte_ring_create(qp->name, ring_size, socket_id,
			RING_F_SP_ENQ | RING_F_SC_DEQ);
}

/** Setup a queue pair */
static int
kasumi_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
		const struct rte_cryptodev_qp_conf *qp_conf,
		int socket_id)
{
	struct kasumi_qp *qp = NULL;

	/* Free memory prior to re-allocation if needed. */
	if (dev->data->queue_pairs[qp_id] != NULL)
		kasumi_pmd_qp_release(dev, qp_id);

	/* Allocate the queue pair data structure. */
	qp = rte_zmalloc_socket("KASUMI PMD Queue Pair", sizeof(*qp),
					RTE_CACHE_LINE_SIZE, socket_id);
	if (qp == NULL)
		return (-ENOMEM);

	qp->id = qp_id;
	dev->data->queue_pairs[qp_id] = qp;

	if (kasumi_pmd_qp_set_unique_name(dev, qp))
		goto qp_setup_cleanup;

	qp->processed_ops = kasumi_pmd_qp_create_processed_ops_ring(qp,
			qp_conf->nb_descriptors, socket_id);
	if (qp->processed_ops == NULL)
		goto qp_setup_cleanup;

	qp->sess_mp = qp_conf->mp_session;
	qp->sess_mp_priv = qp_conf->mp_session_private;

	memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));

	return 0;

qp_setup_cleanup:
	rte_free(qp);

	return -1;
}

/** Return the number of allocated queue pairs */
static uint32_t
kasumi_pmd_qp_count(struct rte_cryptodev *dev)
{
	return dev->data->nb_queue_pairs;
}

/** Returns the size of the KASUMI session structure */
static unsigned
kasumi_pmd_sym_session_get_size(struct rte_cryptodev *dev __rte_unused)
{
	return sizeof(struct kasumi_session);
}

/** Configure a KASUMI session from a crypto xform chain */
static int
kasumi_pmd_sym_session_configure(struct rte_cryptodev *dev __rte_unused,
		struct rte_crypto_sym_xform *xform,
		struct rte_cryptodev_sym_session *sess,
		struct rte_mempool *mempool)
{
	void *sess_private_data;
	int ret;

	if (unlikely(sess == NULL)) {
		KASUMI_LOG(ERR, "invalid session struct");
		return -EINVAL;
	}

	if (rte_mempool_get(mempool, &sess_private_data)) {
		KASUMI_LOG(ERR,
				"Couldn't get object from session mempool");
		return -ENOMEM;
	}

	ret = kasumi_set_session_parameters(sess_private_data, xform);
	if (ret != 0) {
		KASUMI_LOG(ERR, "failed configure session parameters");

		/* Return session to mempool */
		rte_mempool_put(mempool, sess_private_data);
		return ret;
	}

	set_sym_session_private_data(sess, dev->driver_id,
		sess_private_data);

	return 0;
}

/** Clear the memory of session so it doesn't leave key material behind */
static void
kasumi_pmd_sym_session_clear(struct rte_cryptodev *dev,
		struct rte_cryptodev_sym_session *sess)
{
	uint8_t index = dev->driver_id;
	void *sess_priv = get_sym_session_private_data(sess, index);

	/* Zero out the whole structure */
	if (sess_priv) {
		memset(sess_priv, 0, sizeof(struct kasumi_session));
		struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
		set_sym_session_private_data(sess, index, NULL);
		rte_mempool_put(sess_mp, sess_priv);
	}
}

struct rte_cryptodev_ops kasumi_pmd_ops = {
		.dev_configure      = kasumi_pmd_config,
		.dev_start          = kasumi_pmd_start,
		.dev_stop           = kasumi_pmd_stop,
		.dev_close          = kasumi_pmd_close,

		.stats_get          = kasumi_pmd_stats_get,
		.stats_reset        = kasumi_pmd_stats_reset,

		.dev_infos_get      = kasumi_pmd_info_get,

		.queue_pair_setup   = kasumi_pmd_qp_setup,
		.queue_pair_release = kasumi_pmd_qp_release,
		.queue_pair_count   = kasumi_pmd_qp_count,

		.sym_session_get_size   = kasumi_pmd_sym_session_get_size,
		.sym_session_configure  = kasumi_pmd_sym_session_configure,
		.sym_session_clear      = kasumi_pmd_sym_session_clear
};

struct rte_cryptodev_ops *rte_kasumi_pmd_ops = &kasumi_pmd_ops;
Commit	Line	Data
11fdf7f2 TL	1	/* SPDX-License-Identifier: BSD-3-Clause
11fdf7f2 TL	2	* Copyright(c) 2016-2018 Intel Corporation
7c673cae FG	3	*/
	4
	5	#include <string.h>
	6
	7	#include <rte_common.h>
	8	#include <rte_malloc.h>
	9	#include <rte_cryptodev_pmd.h>
	10
	11	#include "rte_kasumi_pmd_private.h"
	12
	13	static const struct rte_cryptodev_capabilities kasumi_pmd_capabilities[] = {
	14	{ /* KASUMI (F9) */
	15	.op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
	16	{.sym = {
	17	.xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
	18	{.auth = {
	19	.algo = RTE_CRYPTO_AUTH_KASUMI_F9,
	20	.block_size = 8,
	21	.key_size = {
	22	.min = 16,
	23	.max = 16,
	24	.increment = 0
	25	},
	26	.digest_size = {
	27	.min = 4,
	28	.max = 4,
	29	.increment = 0
	30	},
11fdf7f2	31	.iv_size = { 0 }
7c673cae FG	32	}, }
	33	}, }
	34	},
	35	{ /* KASUMI (F8) */
	36	.op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
	37	{.sym = {
	38	.xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
	39	{.cipher = {
	40	.algo = RTE_CRYPTO_CIPHER_KASUMI_F8,
	41	.block_size = 8,
	42	.key_size = {
	43	.min = 16,
	44	.max = 16,
	45	.increment = 0
	46	},
	47	.iv_size = {
	48	.min = 8,
	49	.max = 8,
	50	.increment = 0
	51	}
	52	}, }
	53	}, }
	54	},
	55	RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
	56	};
	57
	58	/** Configure device */
	59	static int
11fdf7f2 TL	60	kasumi_pmd_config(__rte_unused struct rte_cryptodev *dev,
11fdf7f2 TL	61	__rte_unused struct rte_cryptodev_config *config)
7c673cae FG	62	{
	63	return 0;
	64	}
	65
	66	/** Start device */
	67	static int
	68	kasumi_pmd_start(__rte_unused struct rte_cryptodev *dev)
	69	{
	70	return 0;
	71	}
	72
	73	/** Stop device */
	74	static void
	75	kasumi_pmd_stop(__rte_unused struct rte_cryptodev *dev)
	76	{
	77	}
	78
	79	/** Close device */
	80	static int
	81	kasumi_pmd_close(__rte_unused struct rte_cryptodev *dev)
	82	{
	83	return 0;
	84	}
	85
	86
	87	/** Get device statistics */
	88	static void
	89	kasumi_pmd_stats_get(struct rte_cryptodev *dev,
	90	struct rte_cryptodev_stats *stats)
	91	{
	92	int qp_id;
	93
	94	for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
	95	struct kasumi_qp *qp = dev->data->queue_pairs[qp_id];
	96
	97	stats->enqueued_count += qp->qp_stats.enqueued_count;
	98	stats->dequeued_count += qp->qp_stats.dequeued_count;
	99
	100	stats->enqueue_err_count += qp->qp_stats.enqueue_err_count;
	101	stats->dequeue_err_count += qp->qp_stats.dequeue_err_count;
	102	}
	103	}
	104
	105	/** Reset device statistics */
	106	static void
	107	kasumi_pmd_stats_reset(struct rte_cryptodev *dev)
	108	{
	109	int qp_id;
	110
	111	for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
	112	struct kasumi_qp *qp = dev->data->queue_pairs[qp_id];
	113
	114	memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
	115	}
	116	}
	117
	118
	119	/** Get device info */
	120	static void
	121	kasumi_pmd_info_get(struct rte_cryptodev *dev,
	122	struct rte_cryptodev_info *dev_info)
	123	{
	124	struct kasumi_private *internals = dev->data->dev_private;
	125
126	if (dev_info != NULL) {
11fdf7f2	127	dev_info->driver_id = dev->driver_id;
7c673cae	128	dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
11fdf7f2 TL	129	/* No limit of number of sessions */
11fdf7f2 TL	130	dev_info->sym.max_nb_sessions = 0;
7c673cae FG	131	dev_info->feature_flags = dev->feature_flags;
	132	dev_info->capabilities = kasumi_pmd_capabilities;
	133	}
	134	}
	135
	136	/** Release queue pair */
	137	static int
	138	kasumi_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
	139	{
	140	struct kasumi_qp *qp = dev->data->queue_pairs[qp_id];
	141
	142	if (qp != NULL) {
	143	rte_ring_free(qp->processed_ops);
	144	rte_free(qp);
	145	dev->data->queue_pairs[qp_id] = NULL;
	146	}
	147	return 0;
	148	}
	149
	150	/** set a unique name for the queue pair based on its name, dev_id and qp_id */
	151	static int
	152	kasumi_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
	153	struct kasumi_qp *qp)
	154	{
	155	unsigned n = snprintf(qp->name, sizeof(qp->name),
	156	"kasumi_pmd_%u_qp_%u",
	157	dev->data->dev_id, qp->id);
	158
11fdf7f2	159	if (n >= sizeof(qp->name))
7c673cae FG	160	return -1;
	161
	162	return 0;
	163	}
	164
	165	/** Create a ring to place processed ops on */
	166	static struct rte_ring *
	167	kasumi_pmd_qp_create_processed_ops_ring(struct kasumi_qp *qp,
	168	unsigned ring_size, int socket_id)
	169	{
	170	struct rte_ring *r;
	171
	172	r = rte_ring_lookup(qp->name);
	173	if (r) {
11fdf7f2 TL	174	if (rte_ring_get_size(r) == ring_size) {
11fdf7f2 TL	175	KASUMI_LOG(INFO, "Reusing existing ring %s"
7c673cae FG	176	" for processed packets",
	177	qp->name);
	178	return r;
	179	}
	180
11fdf7f2	181	KASUMI_LOG(ERR, "Unable to reuse existing ring %s"
7c673cae FG	182	" for processed packets",
	183	qp->name);
	184	return NULL;
	185	}
	186
	187	return rte_ring_create(qp->name, ring_size, socket_id,
	188	RING_F_SP_ENQ \| RING_F_SC_DEQ);
	189	}
	190
	191	/** Setup a queue pair */
	192	static int
	193	kasumi_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
	194	const struct rte_cryptodev_qp_conf *qp_conf,
9f95a23c	195	int socket_id)
7c673cae FG	196	{
	197	struct kasumi_qp *qp = NULL;
	198
	199	/* Free memory prior to re-allocation if needed. */
	200	if (dev->data->queue_pairs[qp_id] != NULL)
	201	kasumi_pmd_qp_release(dev, qp_id);
	202
	203	/* Allocate the queue pair data structure. */
	204	qp = rte_zmalloc_socket("KASUMI PMD Queue Pair", sizeof(*qp),
	205	RTE_CACHE_LINE_SIZE, socket_id);
	206	if (qp == NULL)
	207	return (-ENOMEM);
	208
	209	qp->id = qp_id;
	210	dev->data->queue_pairs[qp_id] = qp;
	211
	212	if (kasumi_pmd_qp_set_unique_name(dev, qp))
	213	goto qp_setup_cleanup;
	214
	215	qp->processed_ops = kasumi_pmd_qp_create_processed_ops_ring(qp,
	216	qp_conf->nb_descriptors, socket_id);
	217	if (qp->processed_ops == NULL)
	218	goto qp_setup_cleanup;
	219
9f95a23c TL	220	qp->sess_mp = qp_conf->mp_session;
9f95a23c TL	221	qp->sess_mp_priv = qp_conf->mp_session_private;
7c673cae FG	222
	223	memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
	224
	225	return 0;
	226
	227	qp_setup_cleanup:
	228	rte_free(qp);
	229
	230	return -1;
	231	}
	232
7c673cae FG	233	/** Return the number of allocated queue pairs */
	234	static uint32_t
	235	kasumi_pmd_qp_count(struct rte_cryptodev *dev)
	236	{
	237	return dev->data->nb_queue_pairs;
	238	}
	239
	240	/** Returns the size of the KASUMI session structure */
	241	static unsigned
11fdf7f2	242	kasumi_pmd_sym_session_get_size(struct rte_cryptodev *dev __rte_unused)
7c673cae FG	243	{
	244	return sizeof(struct kasumi_session);
	245	}
	246
	247	/** Configure a KASUMI session from a crypto xform chain */
11fdf7f2 TL	248	static int
	249	kasumi_pmd_sym_session_configure(struct rte_cryptodev *dev __rte_unused,
	250	struct rte_crypto_sym_xform *xform,
	251	struct rte_cryptodev_sym_session *sess,
	252	struct rte_mempool *mempool)
7c673cae	253	{
11fdf7f2 TL	254	void *sess_private_data;
	255	int ret;
	256
7c673cae	257	if (unlikely(sess == NULL)) {
11fdf7f2 TL	258	KASUMI_LOG(ERR, "invalid session struct");
11fdf7f2 TL	259	return -EINVAL;
7c673cae FG	260	}
7c673cae FG	261
11fdf7f2 TL	262	if (rte_mempool_get(mempool, &sess_private_data)) {
	263	KASUMI_LOG(ERR,
	264	"Couldn't get object from session mempool");
	265	return -ENOMEM;
7c673cae FG	266	}
7c673cae FG	267
11fdf7f2 TL	268	ret = kasumi_set_session_parameters(sess_private_data, xform);
	269	if (ret != 0) {
	270	KASUMI_LOG(ERR, "failed configure session parameters");
	271
	272	/* Return session to mempool */
	273	rte_mempool_put(mempool, sess_private_data);
	274	return ret;
	275	}
	276
	277	set_sym_session_private_data(sess, dev->driver_id,
	278	sess_private_data);
	279
	280	return 0;
7c673cae FG	281	}
	282
	283	/** Clear the memory of session so it doesn't leave key material behind */
	284	static void
11fdf7f2 TL	285	kasumi_pmd_sym_session_clear(struct rte_cryptodev *dev,
11fdf7f2 TL	286	struct rte_cryptodev_sym_session *sess)
7c673cae	287	{
11fdf7f2 TL	288	uint8_t index = dev->driver_id;
	289	void *sess_priv = get_sym_session_private_data(sess, index);
	290
	291	/* Zero out the whole structure */
	292	if (sess_priv) {
	293	memset(sess_priv, 0, sizeof(struct kasumi_session));
	294	struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
	295	set_sym_session_private_data(sess, index, NULL);
	296	rte_mempool_put(sess_mp, sess_priv);
	297	}
7c673cae FG	298	}
	299
	300	struct rte_cryptodev_ops kasumi_pmd_ops = {
	301	.dev_configure = kasumi_pmd_config,
	302	.dev_start = kasumi_pmd_start,
	303	.dev_stop = kasumi_pmd_stop,
	304	.dev_close = kasumi_pmd_close,
	305
	306	.stats_get = kasumi_pmd_stats_get,
	307	.stats_reset = kasumi_pmd_stats_reset,
	308
	309	.dev_infos_get = kasumi_pmd_info_get,
	310
	311	.queue_pair_setup = kasumi_pmd_qp_setup,
	312	.queue_pair_release = kasumi_pmd_qp_release,
7c673cae FG	313	.queue_pair_count = kasumi_pmd_qp_count,
7c673cae FG	314
11fdf7f2 TL	315	.sym_session_get_size = kasumi_pmd_sym_session_get_size,
	316	.sym_session_configure = kasumi_pmd_sym_session_configure,
	317	.sym_session_clear = kasumi_pmd_sym_session_clear
7c673cae FG	318	};
	319
	320	struct rte_cryptodev_ops *rte_kasumi_pmd_ops = &kasumi_pmd_ops;