#include "rte_cryptodev.h"
#include "rte_cryptodev_pmd.h"
+static uint8_t nb_drivers;
+
struct rte_cryptodev rte_crypto_devices[RTE_CRYPTO_MAX_DEVS];
struct rte_cryptodev *rte_cryptodevs = &rte_crypto_devices[0];
}
-static void
-rte_cryptodev_sym_session_init(struct rte_mempool *mp,
- const struct rte_cryptodev *dev,
- struct rte_cryptodev_sym_session *sess)
+int
+rte_cryptodev_sym_session_init(uint8_t dev_id,
+ struct rte_cryptodev_sym_session *sess,
+ struct rte_crypto_sym_xform *xforms,
+ struct rte_mempool *mp)
{
- memset(sess, 0, mp->elt_size);
+ struct rte_cryptodev *dev;
+ uint8_t index;
- if (dev->dev_ops->session_initialize)
- (*dev->dev_ops->session_initialize)(mp, sess);
-}
+ dev = rte_cryptodev_pmd_get_dev(dev_id);
+ if (sess == NULL || xforms == NULL || dev == NULL)
+ return -1;
-struct rte_cryptodev_sym_session *
-rte_cryptodev_sym_session_create(uint8_t dev_id,
- struct rte_crypto_sym_xform *xform)
-{
- struct rte_cryptodev *dev;
- struct rte_cryptodev_sym_session *sess;
- void *_sess;
+ index = dev->driver_id;
- if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
- CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
- return NULL;
+ if (sess->sess_private_data[index] == NULL) {
+ if (dev->dev_ops->session_configure(dev, xforms, sess, mp) < 0) {
+ CDEV_LOG_ERR(
+ "dev_id %d failed to configure session details",
+ dev_id);
+ return -1;
+ }
}
- dev = &rte_crypto_devices[dev_id];
+ return 0;
+}
+
+struct rte_cryptodev_sym_session *
+rte_cryptodev_sym_session_create(struct rte_mempool *mp)
+{
+ struct rte_cryptodev_sym_session *sess;
/* Allocate a session structure from the session pool */
- if (rte_mempool_get(dev->data->session_pool, &_sess)) {
- CDEV_LOG_ERR("Couldn't get object from session mempool");
+ if (rte_mempool_get(mp, (void *)&sess)) {
+ CDEV_LOG_ERR("couldn't get object from session mempool");
return NULL;
}
- sess = _sess;
-
- rte_cryptodev_sym_session_init(dev->data->session_pool, dev,
- sess);
- RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_configure, NULL);
- if (dev->dev_ops->session_configure(dev, xform, sess->_private) ==
- NULL) {
- CDEV_LOG_ERR("dev_id %d failed to configure session details",
- dev_id);
-
- /* Return session to mempool */
- rte_mempool_put(dev->data->session_pool, _sess);
- return NULL;
- }
+ /* Clear device session pointer */
+ memset(sess, 0, (sizeof(void *) * nb_drivers));
return sess;
}
/* The API is optional, not returning error if driver do not suuport */
RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_attach_session, 0);
- if (dev->dev_ops->qp_attach_session(dev, qp_id, sess->_private)) {
+
+ void *sess_priv = get_session_private_data(sess, dev->driver_id);
+
+ if (dev->dev_ops->qp_attach_session(dev, qp_id, sess_priv)) {
CDEV_LOG_ERR("dev_id %d failed to attach qp: %d with session",
dev_id, qp_id);
return -EPERM;
/* The API is optional, not returning error if driver do not suuport */
RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->qp_detach_session, 0);
- if (dev->dev_ops->qp_detach_session(dev, qp_id, sess->_private)) {
+
+ void *sess_priv = get_session_private_data(sess, dev->driver_id);
+
+ if (dev->dev_ops->qp_detach_session(dev, qp_id, sess_priv)) {
CDEV_LOG_ERR("dev_id %d failed to detach qp: %d from session",
dev_id, qp_id);
return -EPERM;
return 0;
}
-struct rte_cryptodev_sym_session *
-rte_cryptodev_sym_session_free(uint8_t dev_id,
+
+int
+rte_cryptodev_sym_session_clear(uint8_t dev_id,
struct rte_cryptodev_sym_session *sess)
{
struct rte_cryptodev *dev;
- if (!rte_cryptodev_pmd_is_valid_dev(dev_id)) {
- CDEV_LOG_ERR("Invalid dev_id=%d", dev_id);
- return sess;
- }
+ dev = rte_cryptodev_pmd_get_dev(dev_id);
- dev = &rte_crypto_devices[dev_id];
+ if (dev == NULL || sess == NULL)
+ return -EINVAL;
+
+ dev->dev_ops->session_clear(dev, sess);
- /* Let device implementation clear session material */
- RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->session_clear, sess);
- dev->dev_ops->session_clear(dev, (void *)sess->_private);
+ return 0;
+}
+
+int
+rte_cryptodev_sym_session_free(struct rte_cryptodev_sym_session *sess)
+{
+ uint8_t i;
+ void *sess_priv;
+ struct rte_mempool *sess_mp;
+
+ if (sess == NULL)
+ return -EINVAL;
+
+ /* Check that all device private data has been freed */
+ for (i = 0; i < nb_drivers; i++) {
+ sess_priv = get_session_private_data(sess, i);
+ if (sess_priv != NULL)
+ return -EBUSY;
+ }
/* Return session to mempool */
- struct rte_mempool *mp = rte_mempool_from_obj(sess);
- rte_mempool_put(mp, (void *)sess);
+ sess_mp = rte_mempool_from_obj(sess);
+ rte_mempool_put(sess_mp, sess);
- return NULL;
+ return 0;
+}
+
+unsigned int
+rte_cryptodev_get_header_session_size(void)
+{
+ /*
+ * Header contains pointers to the private data
+ * of all registered drivers
+ */
+ return (sizeof(void *) * nb_drivers);
}
unsigned int
rte_cryptodev_get_private_session_size(uint8_t dev_id)
{
struct rte_cryptodev *dev;
+ unsigned int header_size = sizeof(void *) * nb_drivers;
unsigned int priv_sess_size;
if (!rte_cryptodev_pmd_is_valid_dev(dev_id))
priv_sess_size = (*dev->dev_ops->session_get_size)(dev);
+ /*
+ * If size is less than session header size,
+ * return the latter, as this guarantees that
+ * sessionless operations will work
+ */
+ if (priv_sess_size < header_size)
+ return header_size;
+
return priv_sess_size;
}
uint8_t id;
};
-static uint8_t nb_drivers;
-
int
rte_cryptodev_driver_id_get(const char *name)
{
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