cryptodev: add user defined name for vdev

[dpdk.git] / lib / librte_cryptodev / rte_cryptodev.c

diff --git a/lib/librte_cryptodev/rte_cryptodev.c b/lib/librte_cryptodev/rte_cryptodev.c
index bbab4b3..f2ceb9b 100644 (file)
--- a/lib/librte_cryptodev/rte_cryptodev.c
+++ b/lib/librte_cryptodev/rte_cryptodev.c
@@ -101,11 +101,13 @@ struct rte_cryptodev_callback {
        uint32_t active;                        /**< Callback is executing */
 };
 
+#define RTE_CRYPTODEV_VDEV_NAME                                ("name")
 #define RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG               ("max_nb_queue_pairs")
 #define RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG             ("max_nb_sessions")
 #define RTE_CRYPTODEV_VDEV_SOCKET_ID                   ("socket_id")
 
 static const char *cryptodev_vdev_valid_params[] = {
+       RTE_CRYPTODEV_VDEV_NAME,
        RTE_CRYPTODEV_VDEV_MAX_NB_QP_ARG,
        RTE_CRYPTODEV_VDEV_MAX_NB_SESS_ARG,
        RTE_CRYPTODEV_VDEV_SOCKET_ID
@@ -143,6 +145,25 @@ parse_integer_arg(const char *key __rte_unused,
        return 0;
 }
 
+/** Parse name */
+static int
+parse_name_arg(const char *key __rte_unused,
+               const char *value, void *extra_args)
+{
+       struct rte_crypto_vdev_init_params *params = extra_args;
+
+       if (strlen(value) >= RTE_CRYPTODEV_NAME_MAX_LEN - 1) {
+               CDEV_LOG_ERR("Invalid name %s, should be less than "
+                               "%u bytes", value,
+                               RTE_CRYPTODEV_NAME_MAX_LEN - 1);
+               return -1;
+       }
+
+       strncpy(params->name, value, RTE_CRYPTODEV_NAME_MAX_LEN);
+
+       return 0;
+}
+
 int
 rte_cryptodev_parse_vdev_init_params(struct rte_crypto_vdev_init_params *params,
                const char *input_args)
@@ -179,6 +200,12 @@ rte_cryptodev_parse_vdev_init_params(struct rte_crypto_vdev_init_params *params,
                if (ret < 0)
                        goto free_kvlist;
 
+               ret = rte_kvargs_process(kvlist, RTE_CRYPTODEV_VDEV_NAME,
+                                       &parse_name_arg,
+                                       params);
+               if (ret < 0)
+                       goto free_kvlist;
+
                if (params->socket_id >= number_of_sockets()) {
                        CDEV_LOG_ERR("Invalid socket id specified to create "
                                "the virtual crypto device on");
@@ -1206,3 +1233,27 @@ rte_crypto_op_pool_create(const char *name, enum rte_crypto_op_type type,
 
        return mp;
 }
+
+int
+rte_cryptodev_pmd_create_dev_name(char *name, const char *dev_name_prefix)
+{
+       struct rte_cryptodev *dev = NULL;
+       uint32_t i = 0;
+
+       if (name == NULL)
+               return -EINVAL;
+
+       for (i = 0; i < RTE_CRYPTO_MAX_DEVS; i++) {
+               int ret = snprintf(name, RTE_CRYPTODEV_NAME_MAX_LEN,
+                               "%s_%u", dev_name_prefix, i);
+
+               if (ret < 0)
+                       return ret;
+
+               dev = rte_cryptodev_pmd_get_named_dev(name);
+               if (!dev)
+                       return 0;
+       }
+
+       return -1;
+}