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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 GMAC (AUTH) */
43 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
45 .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
47 .algo = RTE_CRYPTO_AUTH_AES_GMAC,
67 { /* AES GCM (AUTH) */
68 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
70 .xform_type = RTE_CRYPTO_SYM_XFORM_AUTH,
72 .algo = RTE_CRYPTO_AUTH_AES_GCM,
92 { /* AES GCM (CIPHER) */
93 .op = RTE_CRYPTO_OP_TYPE_SYMMETRIC,
95 .xform_type = RTE_CRYPTO_SYM_XFORM_CIPHER,
97 .algo = RTE_CRYPTO_CIPHER_AES_GCM,
112 RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
115 /** Configure device */
117 aesni_gcm_pmd_config(__rte_unused struct rte_cryptodev *dev,
118 __rte_unused struct rte_cryptodev_config *config)
125 aesni_gcm_pmd_start(__rte_unused struct rte_cryptodev *dev)
132 aesni_gcm_pmd_stop(__rte_unused struct rte_cryptodev *dev)
138 aesni_gcm_pmd_close(__rte_unused struct rte_cryptodev *dev)
144 /** Get device statistics */
146 aesni_gcm_pmd_stats_get(struct rte_cryptodev *dev,
147 struct rte_cryptodev_stats *stats)
151 for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
152 struct aesni_gcm_qp *qp = dev->data->queue_pairs[qp_id];
154 stats->enqueued_count += qp->qp_stats.enqueued_count;
155 stats->dequeued_count += qp->qp_stats.dequeued_count;
157 stats->enqueue_err_count += qp->qp_stats.enqueue_err_count;
158 stats->dequeue_err_count += qp->qp_stats.dequeue_err_count;
162 /** Reset device statistics */
164 aesni_gcm_pmd_stats_reset(struct rte_cryptodev *dev)
168 for (qp_id = 0; qp_id < dev->data->nb_queue_pairs; qp_id++) {
169 struct aesni_gcm_qp *qp = dev->data->queue_pairs[qp_id];
171 memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
176 /** Get device info */
178 aesni_gcm_pmd_info_get(struct rte_cryptodev *dev,
179 struct rte_cryptodev_info *dev_info)
181 struct aesni_gcm_private *internals = dev->data->dev_private;
183 if (dev_info != NULL) {
184 dev_info->dev_type = dev->dev_type;
185 dev_info->feature_flags = dev->feature_flags;
186 dev_info->capabilities = aesni_gcm_pmd_capabilities;
188 dev_info->max_nb_queue_pairs = internals->max_nb_queue_pairs;
189 dev_info->sym.max_nb_sessions = internals->max_nb_sessions;
193 /** Release queue pair */
195 aesni_gcm_pmd_qp_release(struct rte_cryptodev *dev, uint16_t qp_id)
197 if (dev->data->queue_pairs[qp_id] != NULL) {
198 rte_free(dev->data->queue_pairs[qp_id]);
199 dev->data->queue_pairs[qp_id] = NULL;
204 /** set a unique name for the queue pair based on it's name, dev_id and qp_id */
206 aesni_gcm_pmd_qp_set_unique_name(struct rte_cryptodev *dev,
207 struct aesni_gcm_qp *qp)
209 unsigned n = snprintf(qp->name, sizeof(qp->name),
210 "aesni_gcm_pmd_%u_qp_%u",
211 dev->data->dev_id, qp->id);
213 if (n > sizeof(qp->name))
219 /** Create a ring to place process packets on */
220 static struct rte_ring *
221 aesni_gcm_pmd_qp_create_processed_pkts_ring(struct aesni_gcm_qp *qp,
222 unsigned ring_size, int socket_id)
226 r = rte_ring_lookup(qp->name);
228 if (rte_ring_get_size(r) >= ring_size) {
229 GCM_LOG_INFO("Reusing existing ring %s for processed"
230 " packets", qp->name);
234 GCM_LOG_ERR("Unable to reuse existing ring %s for processed"
235 " packets", qp->name);
239 return rte_ring_create(qp->name, ring_size, socket_id,
240 RING_F_SP_ENQ | RING_F_SC_DEQ);
243 /** Setup a queue pair */
245 aesni_gcm_pmd_qp_setup(struct rte_cryptodev *dev, uint16_t qp_id,
246 const struct rte_cryptodev_qp_conf *qp_conf,
249 struct aesni_gcm_qp *qp = NULL;
251 /* Free memory prior to re-allocation if needed. */
252 if (dev->data->queue_pairs[qp_id] != NULL)
253 aesni_gcm_pmd_qp_release(dev, qp_id);
255 /* Allocate the queue pair data structure. */
256 qp = rte_zmalloc_socket("AES-NI PMD Queue Pair", sizeof(*qp),
257 RTE_CACHE_LINE_SIZE, socket_id);
262 dev->data->queue_pairs[qp_id] = qp;
264 if (aesni_gcm_pmd_qp_set_unique_name(dev, qp))
265 goto qp_setup_cleanup;
267 qp->processed_pkts = aesni_gcm_pmd_qp_create_processed_pkts_ring(qp,
268 qp_conf->nb_descriptors, socket_id);
269 if (qp->processed_pkts == NULL)
270 goto qp_setup_cleanup;
272 qp->sess_mp = dev->data->session_pool;
274 memset(&qp->qp_stats, 0, sizeof(qp->qp_stats));
285 /** Start queue pair */
287 aesni_gcm_pmd_qp_start(__rte_unused struct rte_cryptodev *dev,
288 __rte_unused uint16_t queue_pair_id)
293 /** Stop queue pair */
295 aesni_gcm_pmd_qp_stop(__rte_unused struct rte_cryptodev *dev,
296 __rte_unused uint16_t queue_pair_id)
301 /** Return the number of allocated queue pairs */
303 aesni_gcm_pmd_qp_count(struct rte_cryptodev *dev)
305 return dev->data->nb_queue_pairs;
308 /** Returns the size of the aesni gcm session structure */
310 aesni_gcm_pmd_session_get_size(struct rte_cryptodev *dev __rte_unused)
312 return sizeof(struct aesni_gcm_session);
315 /** Configure a aesni gcm session from a crypto xform chain */
317 aesni_gcm_pmd_session_configure(struct rte_cryptodev *dev __rte_unused,
318 struct rte_crypto_sym_xform *xform, void *sess)
320 if (unlikely(sess == NULL)) {
321 GCM_LOG_ERR("invalid session struct");
325 if (aesni_gcm_set_session_parameters(sess, xform) != 0) {
326 GCM_LOG_ERR("failed configure session parameters");
333 /** Clear the memory of session so it doesn't leave key material behind */
335 aesni_gcm_pmd_session_clear(struct rte_cryptodev *dev __rte_unused, void *sess)
338 memset(sess, 0, sizeof(struct aesni_gcm_session));
341 struct rte_cryptodev_ops aesni_gcm_pmd_ops = {
342 .dev_configure = aesni_gcm_pmd_config,
343 .dev_start = aesni_gcm_pmd_start,
344 .dev_stop = aesni_gcm_pmd_stop,
345 .dev_close = aesni_gcm_pmd_close,
347 .stats_get = aesni_gcm_pmd_stats_get,
348 .stats_reset = aesni_gcm_pmd_stats_reset,
350 .dev_infos_get = aesni_gcm_pmd_info_get,
352 .queue_pair_setup = aesni_gcm_pmd_qp_setup,
353 .queue_pair_release = aesni_gcm_pmd_qp_release,
354 .queue_pair_start = aesni_gcm_pmd_qp_start,
355 .queue_pair_stop = aesni_gcm_pmd_qp_stop,
356 .queue_pair_count = aesni_gcm_pmd_qp_count,
358 .session_get_size = aesni_gcm_pmd_session_get_size,
359 .session_configure = aesni_gcm_pmd_session_configure,
360 .session_clear = aesni_gcm_pmd_session_clear
363 struct rte_cryptodev_ops *rte_aesni_gcm_pmd_ops = &aesni_gcm_pmd_ops;