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35 #include <rte_common.h>
36 #include <rte_malloc.h>
37 #include <rte_cryptodev_pmd.h>
39 #include "aesni_gcm_pmd_private.h"
41 static const struct rte_cryptodev_capabilities aesni_gcm_pmd_capabilities[] = {
42 { /* AES GCM (AUTH) */
43 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
45 .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
47 .algo = RTE_CRYPTO_AUTH_AES_GCM,
67 { /* AES GCM (CIPHER) */
68 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
70 .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
72 .algo = RTE_CRYPTO_CIPHER_AES_GCM,
87 RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
90 /** Configure device */
92 aesni_gcm_pmd_config(__rte_unused struct rte_cryptodev *dev)
99 aesni_gcm_pmd_start(__rte_unused struct rte_cryptodev *dev)
106 aesni_gcm_pmd_stop(__rte_unused struct rte_cryptodev *dev)
112 aesni_gcm_pmd_close(__rte_unused struct rte_cryptodev *dev)
118 /** Get device statistics */
120 aesni_gcm_pmd_stats_get(struct rte_cryptodev *dev,
121 struct rte_cryptodev_stats *stats)
125 for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
126 struct aesni_gcm_qp *qp = dev->data->queue_pairs[qp_id];
128 stats->enqueued_count += qp->qp_stats.enqueued_count;
129 stats->dequeued_count += qp->qp_stats.dequeued_count;
131 stats->enqueue_err_count += qp->qp_stats.enqueue_err_count;
132 stats->dequeue_err_count += qp->qp_stats.dequeue_err_count;
136 /** Reset device statistics */
138 aesni_gcm_pmd_stats_reset(struct rte_cryptodev *dev)
142 for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
143 struct aesni_gcm_qp *qp = dev->data->queue_pairs[qp_id];
145 memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
150 /** Get device info */
152 aesni_gcm_pmd_info_get(struct rte_cryptodev *dev,
153 struct rte_cryptodev_info *dev_info)
155 struct aesni_gcm_private *internals = dev->data->dev_private;
157 if (dev_info != NULL) {
158 dev_info->dev_type = dev->dev_type;
159 dev_info->feature_flags = dev->feature_flags;
160 dev_info->capabilities = aesni_gcm_pmd_capabilities;
162 dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
163 dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
167 /** Release queue pair */
169 aesni_gcm_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
171 if (dev->data->queue_pairs[qp_id] != NULL) {
172 rte_free(dev->data->queue_pairs[qp_id]);
173 dev->data->queue_pairs[qp_id] = NULL;
178 /** set a unique name for the queue pair based on it's name, dev_id and qp_id */
180 aesni_gcm_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
181 struct aesni_gcm_qp *qp)
183 unsigned n = snprintf(qp->name, sizeof(qp->name),
184 "aesni_gcm_pmd_%u_qp_%u",
185 dev->data->dev_id, qp->id);
187 if (n > sizeof(qp->name))
193 /** Create a ring to place process packets on */
194 static struct rte_ring *
195 aesni_gcm_pmd_qp_create_processed_pkts_ring(struct aesni_gcm_qp *qp,
196 unsigned ring_size, int socket_id)
200 r = rte_ring_lookup(qp->name);
202 if (r->prod.size >= ring_size) {
203 GCM_LOG_INFO("Reusing existing ring %s for processed"
204 " packets", qp->name);
208 GCM_LOG_ERR("Unable to reuse existing ring %s for processed"
209 " packets", qp->name);
213 return rte_ring_create(qp->name, ring_size, socket_id,
214 RING_F_SP_ENQ | RING_F_SC_DEQ);
217 /** Setup a queue pair */
219 aesni_gcm_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
220 const struct rte_cryptodev_qp_conf *qp_conf,
223 struct aesni_gcm_qp *qp = NULL;
224 struct aesni_gcm_private *internals = dev->data->dev_private;
226 /* Free memory prior to re-allocation if needed. */
227 if (dev->data->queue_pairs[qp_id] != NULL)
228 aesni_gcm_pmd_qp_release(dev, qp_id);
230 /* Allocate the queue pair data structure. */
231 qp = rte_zmalloc_socket("AES-NI PMD Queue Pair", sizeof(*qp),
232 RTE_CACHE_LINE_SIZE, socket_id);
237 dev->data->queue_pairs[qp_id] = qp;
239 if (aesni_gcm_pmd_qp_set_unique_name(dev, qp))
240 goto qp_setup_cleanup;
242 qp->ops = &gcm_ops[internals->vector_mode];
244 qp->processed_pkts = aesni_gcm_pmd_qp_create_processed_pkts_ring(qp,
245 qp_conf->nb_descriptors, socket_id);
246 if (qp->processed_pkts == NULL)
247 goto qp_setup_cleanup;
249 qp->sess_mp = dev->data->session_pool;
251 memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
262 /** Start queue pair */
264 aesni_gcm_pmd_qp_start(__rte_unused struct rte_cryptodev *dev,
265 __rte_unused uint16_t queue_pair_id)
270 /** Stop queue pair */
272 aesni_gcm_pmd_qp_stop(__rte_unused struct rte_cryptodev *dev,
273 __rte_unused uint16_t queue_pair_id)
278 /** Return the number of allocated queue pairs */
280 aesni_gcm_pmd_qp_count(struct rte_cryptodev *dev)
282 return dev->data->nb_queue_pairs;
285 /** Returns the size of the aesni gcm session structure */
287 aesni_gcm_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
289 return sizeof(struct aesni_gcm_session);
292 /** Configure a aesni gcm session from a crypto xform chain */
294 aesni_gcm_pmd_session_configure(struct rte_cryptodev *dev,
295 struct rte_crypto_sym_xform *xform, void *sess)
297 struct aesni_gcm_private *internals = dev->data->dev_private;
299 if (unlikely(sess == NULL)) {
300 GCM_LOG_ERR("invalid session struct");
304 if (aesni_gcm_set_session_parameters(&gcm_ops[internals->vector_mode],
306 GCM_LOG_ERR("failed configure session parameters");
313 /** Clear the memory of session so it doesn't leave key material behind */
315 aesni_gcm_pmd_session_clear(struct rte_cryptodev *dev __rte_unused, void *sess)
318 memset(sess, 0, sizeof(struct aesni_gcm_session));
321 struct rte_cryptodev_ops aesni_gcm_pmd_ops = {
322 .dev_configure = aesni_gcm_pmd_config,
323 .dev_start = aesni_gcm_pmd_start,
324 .dev_stop = aesni_gcm_pmd_stop,
325 .dev_close = aesni_gcm_pmd_close,
327 .stats_get = aesni_gcm_pmd_stats_get,
328 .stats_reset = aesni_gcm_pmd_stats_reset,
330 .dev_infos_get = aesni_gcm_pmd_info_get,
332 .queue_pair_setup = aesni_gcm_pmd_qp_setup,
333 .queue_pair_release = aesni_gcm_pmd_qp_release,
334 .queue_pair_start = aesni_gcm_pmd_qp_start,
335 .queue_pair_stop = aesni_gcm_pmd_qp_stop,
336 .queue_pair_count = aesni_gcm_pmd_qp_count,
338 .session_get_size = aesni_gcm_pmd_session_get_size,
339 .session_configure = aesni_gcm_pmd_session_configure,
340 .session_clear = aesni_gcm_pmd_session_clear
343 struct rte_cryptodev_ops *rte_aesni_gcm_pmd_ops = &aesni_gcm_pmd_ops;