1 /* SPDX-License-Identifier: BSD-3-Clause
2 * Copyright(c) 2016-2018 Intel Corporation
7 #include <rte_common.h>
8 #include <rte_malloc.h>
9 #include <rte_cryptodev_pmd.h>
11 #include "rte_snow3g_pmd_private.h"
13 static const struct rte_cryptodev_capabilities snow3g_pmd_capabilities[] = {
14 { /* SNOW 3G (UIA2) */
15 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
17 .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
19 .algo = RTE_CRYPTO_AUTH_SNOW3G_UIA2,
39 { /* SNOW 3G (UEA2) */
40 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
42 .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
44 .algo = RTE_CRYPTO_CIPHER_SNOW3G_UEA2,
59 RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
62 /** Configure device */
64 snow3g_pmd_config(__rte_unused struct rte_cryptodev *dev,
65 __rte_unused struct rte_cryptodev_config *config)
72 snow3g_pmd_start(__rte_unused struct rte_cryptodev *dev)
79 snow3g_pmd_stop(__rte_unused struct rte_cryptodev *dev)
85 snow3g_pmd_close(__rte_unused struct rte_cryptodev *dev)
91 /** Get device statistics */
93 snow3g_pmd_stats_get(struct rte_cryptodev *dev,
94 struct rte_cryptodev_stats *stats)
98 for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
99 struct snow3g_qp *qp = dev->data->queue_pairs[qp_id];
101 stats->enqueued_count += qp->qp_stats.enqueued_count;
102 stats->dequeued_count += qp->qp_stats.dequeued_count;
104 stats->enqueue_err_count += qp->qp_stats.enqueue_err_count;
105 stats->dequeue_err_count += qp->qp_stats.dequeue_err_count;
109 /** Reset device statistics */
111 snow3g_pmd_stats_reset(struct rte_cryptodev *dev)
115 for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
116 struct snow3g_qp *qp = dev->data->queue_pairs[qp_id];
118 memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
123 /** Get device info */
125 snow3g_pmd_info_get(struct rte_cryptodev *dev,
126 struct rte_cryptodev_info *dev_info)
128 struct snow3g_private *internals = dev->data->dev_private;
130 if (dev_info != NULL) {
131 dev_info->driver_id = dev->driver_id;
132 dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
133 /* No limit of number of sessions */
134 dev_info->sym.max_nb_sessions = 0;
135 dev_info->feature_flags = dev->feature_flags;
136 dev_info->capabilities = snow3g_pmd_capabilities;
140 /** Release queue pair */
142 snow3g_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
144 if (dev->data->queue_pairs[qp_id] != NULL) {
145 rte_free(dev->data->queue_pairs[qp_id]);
146 dev->data->queue_pairs[qp_id] = NULL;
151 /** set a unique name for the queue pair based on its name, dev_id and qp_id */
153 snow3g_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
154 struct snow3g_qp *qp)
156 unsigned n = snprintf(qp->name, sizeof(qp->name),
157 "snow3g_pmd_%u_qp_%u",
158 dev->data->dev_id, qp->id);
160 if (n >= sizeof(qp->name))
166 /** Create a ring to place processed ops on */
167 static struct rte_ring *
168 snow3g_pmd_qp_create_processed_ops_ring(struct snow3g_qp *qp,
169 unsigned ring_size, int socket_id)
173 r = rte_ring_lookup(qp->name);
175 if (rte_ring_get_size(r) >= ring_size) {
176 SNOW3G_LOG(INFO, "Reusing existing ring %s"
177 " for processed packets",
182 SNOW3G_LOG(ERR, "Unable to reuse existing ring %s"
183 " for processed packets",
188 return rte_ring_create(qp->name, ring_size, socket_id,
189 RING_F_SP_ENQ | RING_F_SC_DEQ);
192 /** Setup a queue pair */
194 snow3g_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
195 const struct rte_cryptodev_qp_conf *qp_conf,
196 int socket_id, struct rte_mempool *session_pool)
198 struct snow3g_qp *qp = NULL;
200 /* Free memory prior to re-allocation if needed. */
201 if (dev->data->queue_pairs[qp_id] != NULL)
202 snow3g_pmd_qp_release(dev, qp_id);
204 /* Allocate the queue pair data structure. */
205 qp = rte_zmalloc_socket("SNOW 3G PMD Queue Pair", sizeof(*qp),
206 RTE_CACHE_LINE_SIZE, socket_id);
211 dev->data->queue_pairs[qp_id] = qp;
213 if (snow3g_pmd_qp_set_unique_name(dev, qp))
214 goto qp_setup_cleanup;
216 qp->processed_ops = snow3g_pmd_qp_create_processed_ops_ring(qp,
217 qp_conf->nb_descriptors, socket_id);
218 if (qp->processed_ops == NULL)
219 goto qp_setup_cleanup;
221 qp->sess_mp = session_pool;
223 memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
234 /** Return the number of allocated queue pairs */
236 snow3g_pmd_qp_count(struct rte_cryptodev *dev)
238 return dev->data->nb_queue_pairs;
241 /** Returns the size of the SNOW 3G session structure */
243 snow3g_pmd_sym_session_get_size(struct rte_cryptodev *dev __rte_unused)
245 return sizeof(struct snow3g_session);
248 /** Configure a SNOW 3G session from a crypto xform chain */
250 snow3g_pmd_sym_session_configure(struct rte_cryptodev *dev __rte_unused,
251 struct rte_crypto_sym_xform *xform,
252 struct rte_cryptodev_sym_session *sess,
253 struct rte_mempool *mempool)
255 void *sess_private_data;
258 if (unlikely(sess == NULL)) {
259 SNOW3G_LOG(ERR, "invalid session struct");
263 if (rte_mempool_get(mempool, &sess_private_data)) {
265 "Couldn't get object from session mempool");
269 ret = snow3g_set_session_parameters(sess_private_data, xform);
271 SNOW3G_LOG(ERR, "failed configure session parameters");
273 /* Return session to mempool */
274 rte_mempool_put(mempool, sess_private_data);
278 set_sym_session_private_data(sess, dev->driver_id,
284 /** Clear the memory of session so it doesn't leave key material behind */
286 snow3g_pmd_sym_session_clear(struct rte_cryptodev *dev,
287 struct rte_cryptodev_sym_session *sess)
289 uint8_t index = dev->driver_id;
290 void *sess_priv = get_sym_session_private_data(sess, index);
292 /* Zero out the whole structure */
294 memset(sess_priv, 0, sizeof(struct snow3g_session));
295 struct rte_mempool *sess_mp = rte_mempool_from_obj(sess_priv);
296 set_sym_session_private_data(sess, index, NULL);
297 rte_mempool_put(sess_mp, sess_priv);
301 struct rte_cryptodev_ops snow3g_pmd_ops = {
302 .dev_configure = snow3g_pmd_config,
303 .dev_start = snow3g_pmd_start,
304 .dev_stop = snow3g_pmd_stop,
305 .dev_close = snow3g_pmd_close,
307 .stats_get = snow3g_pmd_stats_get,
308 .stats_reset = snow3g_pmd_stats_reset,
310 .dev_infos_get = snow3g_pmd_info_get,
312 .queue_pair_setup = snow3g_pmd_qp_setup,
313 .queue_pair_release = snow3g_pmd_qp_release,
314 .queue_pair_count = snow3g_pmd_qp_count,
316 .sym_session_get_size = snow3g_pmd_sym_session_get_size,
317 .sym_session_configure = snow3g_pmd_sym_session_configure,
318 .sym_session_clear = snow3g_pmd_sym_session_clear
321 struct rte_cryptodev_ops *rte_snow3g_pmd_ops = &snow3g_pmd_ops;