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35 #include <rte_common.h>
36 #include <rte_malloc.h>
37 #include <rte_cryptodev_pmd.h>
39 #include "rte_snow3g_pmd_private.h"
41 static const struct rte_cryptodev_capabilities snow3g_pmd_capabilities
[] = {
42 { /* SNOW 3G (UIA2) */
43 .op
= RTE_CRYPTO_OP_TYPE_SYMMETRIC
,
45 .xform_type
= RTE_CRYPTO_SYM_XFORM_AUTH
,
47 .algo
= RTE_CRYPTO_AUTH_SNOW3G_UIA2
,
67 { /* SNOW 3G (UEA2) */
68 .op
= RTE_CRYPTO_OP_TYPE_SYMMETRIC
,
70 .xform_type
= RTE_CRYPTO_SYM_XFORM_CIPHER
,
72 .algo
= RTE_CRYPTO_CIPHER_SNOW3G_UEA2
,
87 RTE_CRYPTODEV_END_OF_CAPABILITIES_LIST()
90 /** Configure device */
92 snow3g_pmd_config(__rte_unused
struct rte_cryptodev
*dev
)
99 snow3g_pmd_start(__rte_unused
struct rte_cryptodev
*dev
)
106 snow3g_pmd_stop(__rte_unused
struct rte_cryptodev
*dev
)
112 snow3g_pmd_close(__rte_unused
struct rte_cryptodev
*dev
)
118 /** Get device statistics */
120 snow3g_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 snow3g_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 snow3g_pmd_stats_reset(struct rte_cryptodev
*dev
)
142 for (qp_id
= 0; qp_id
< dev
->data
->nb_queue_pairs
; qp_id
++) {
143 struct snow3g_qp
*qp
= dev
->data
->queue_pairs
[qp_id
];
145 memset(&qp
->qp_stats
, 0, sizeof(qp
->qp_stats
));
150 /** Get device info */
152 snow3g_pmd_info_get(struct rte_cryptodev
*dev
,
153 struct rte_cryptodev_info
*dev_info
)
155 struct snow3g_private
*internals
= dev
->data
->dev_private
;
157 if (dev_info
!= NULL
) {
158 dev_info
->dev_type
= dev
->dev_type
;
159 dev_info
->max_nb_queue_pairs
= internals
->max_nb_queue_pairs
;
160 dev_info
->sym
.max_nb_sessions
= internals
->max_nb_sessions
;
161 dev_info
->feature_flags
= dev
->feature_flags
;
162 dev_info
->capabilities
= snow3g_pmd_capabilities
;
166 /** Release queue pair */
168 snow3g_pmd_qp_release(struct rte_cryptodev
*dev
, uint16_t qp_id
)
170 if (dev
->data
->queue_pairs
[qp_id
] != NULL
) {
171 rte_free(dev
->data
->queue_pairs
[qp_id
]);
172 dev
->data
->queue_pairs
[qp_id
] = NULL
;
177 /** set a unique name for the queue pair based on its name, dev_id and qp_id */
179 snow3g_pmd_qp_set_unique_name(struct rte_cryptodev
*dev
,
180 struct snow3g_qp
*qp
)
182 unsigned n
= snprintf(qp
->name
, sizeof(qp
->name
),
183 "snow3g_pmd_%u_qp_%u",
184 dev
->data
->dev_id
, qp
->id
);
186 if (n
> sizeof(qp
->name
))
192 /** Create a ring to place processed ops on */
193 static struct rte_ring
*
194 snow3g_pmd_qp_create_processed_ops_ring(struct snow3g_qp
*qp
,
195 unsigned ring_size
, int socket_id
)
199 r
= rte_ring_lookup(qp
->name
);
201 if (r
->prod
.size
>= ring_size
) {
202 SNOW3G_LOG_INFO("Reusing existing ring %s"
203 " for processed packets",
208 SNOW3G_LOG_ERR("Unable to reuse existing ring %s"
209 " for processed packets",
214 return rte_ring_create(qp
->name
, ring_size
, socket_id
,
215 RING_F_SP_ENQ
| RING_F_SC_DEQ
);
218 /** Setup a queue pair */
220 snow3g_pmd_qp_setup(struct rte_cryptodev
*dev
, uint16_t qp_id
,
221 const struct rte_cryptodev_qp_conf
*qp_conf
,
224 struct snow3g_qp
*qp
= NULL
;
226 /* Free memory prior to re-allocation if needed. */
227 if (dev
->data
->queue_pairs
[qp_id
] != NULL
)
228 snow3g_pmd_qp_release(dev
, qp_id
);
230 /* Allocate the queue pair data structure. */
231 qp
= rte_zmalloc_socket("SNOW 3G PMD Queue Pair", sizeof(*qp
),
232 RTE_CACHE_LINE_SIZE
, socket_id
);
237 dev
->data
->queue_pairs
[qp_id
] = qp
;
239 if (snow3g_pmd_qp_set_unique_name(dev
, qp
))
240 goto qp_setup_cleanup
;
242 qp
->processed_ops
= snow3g_pmd_qp_create_processed_ops_ring(qp
,
243 qp_conf
->nb_descriptors
, socket_id
);
244 if (qp
->processed_ops
== NULL
)
245 goto qp_setup_cleanup
;
247 qp
->sess_mp
= dev
->data
->session_pool
;
249 memset(&qp
->qp_stats
, 0, sizeof(qp
->qp_stats
));
260 /** Start queue pair */
262 snow3g_pmd_qp_start(__rte_unused
struct rte_cryptodev
*dev
,
263 __rte_unused
uint16_t queue_pair_id
)
268 /** Stop queue pair */
270 snow3g_pmd_qp_stop(__rte_unused
struct rte_cryptodev
*dev
,
271 __rte_unused
uint16_t queue_pair_id
)
276 /** Return the number of allocated queue pairs */
278 snow3g_pmd_qp_count(struct rte_cryptodev
*dev
)
280 return dev
->data
->nb_queue_pairs
;
283 /** Returns the size of the SNOW 3G session structure */
285 snow3g_pmd_session_get_size(struct rte_cryptodev
*dev __rte_unused
)
287 return sizeof(struct snow3g_session
);
290 /** Configure a SNOW 3G session from a crypto xform chain */
292 snow3g_pmd_session_configure(struct rte_cryptodev
*dev __rte_unused
,
293 struct rte_crypto_sym_xform
*xform
, void *sess
)
295 if (unlikely(sess
== NULL
)) {
296 SNOW3G_LOG_ERR("invalid session struct");
300 if (snow3g_set_session_parameters(sess
, xform
) != 0) {
301 SNOW3G_LOG_ERR("failed configure session parameters");
308 /** Clear the memory of session so it doesn't leave key material behind */
310 snow3g_pmd_session_clear(struct rte_cryptodev
*dev __rte_unused
, void *sess
)
313 * Current just resetting the whole data structure, need to investigate
314 * whether a more selective reset of key would be more performant
317 memset(sess
, 0, sizeof(struct snow3g_session
));
320 struct rte_cryptodev_ops snow3g_pmd_ops
= {
321 .dev_configure
= snow3g_pmd_config
,
322 .dev_start
= snow3g_pmd_start
,
323 .dev_stop
= snow3g_pmd_stop
,
324 .dev_close
= snow3g_pmd_close
,
326 .stats_get
= snow3g_pmd_stats_get
,
327 .stats_reset
= snow3g_pmd_stats_reset
,
329 .dev_infos_get
= snow3g_pmd_info_get
,
331 .queue_pair_setup
= snow3g_pmd_qp_setup
,
332 .queue_pair_release
= snow3g_pmd_qp_release
,
333 .queue_pair_start
= snow3g_pmd_qp_start
,
334 .queue_pair_stop
= snow3g_pmd_qp_stop
,
335 .queue_pair_count
= snow3g_pmd_qp_count
,
337 .session_get_size
= snow3g_pmd_session_get_size
,
338 .session_configure
= snow3g_pmd_session_configure
,
339 .session_clear
= snow3g_pmd_session_clear
342 struct rte_cryptodev_ops
*rte_snow3g_pmd_ops
= &snow3g_pmd_ops
;