cryptodev: add user defined name for vdev

[dpdk.git] / drivers / crypto / zuc / rte_zuc_pmd.c

diff --git a/drivers/crypto/zuc/rte_zuc_pmd.c b/drivers/crypto/zuc/rte_zuc_pmd.c
index bf53f76..fabcfb4 100644 (file)
--- a/drivers/crypto/zuc/rte_zuc_pmd.c
+++ b/drivers/crypto/zuc/rte_zuc_pmd.c
@@ -45,27 +45,6 @@
 #define ZUC_MAX_BURST 8
 #define BYTE_LEN 8
 
-/**
- * Global static parameter used to create a unique name for each ZUC
- * crypto device.
- */
-static unsigned unique_name_id;
-
-static inline int
-create_unique_device_name(char *name, size_t size)
-{
-       int ret;
-
-       if (name == NULL)
-               return -EINVAL;
-
-       ret = snprintf(name, size, "%s_%u", RTE_STR(CRYPTODEV_NAME_ZUC_PMD),
-                       unique_name_id++);
-       if (ret < 0)
-               return ret;
-       return 0;
-}
-
 /** Get xform chain order. */
 static enum zuc_operation
 zuc_get_mode(const struct rte_crypto_sym_xform *xform)
@@ -461,14 +440,23 @@ zuc_pmd_dequeue_burst(void *queue_pair,
 static int cryptodev_zuc_remove(const char *name);
 
 static int
-cryptodev_zuc_create(const char *name,
-               struct rte_crypto_vdev_init_params *init_params)
+cryptodev_zuc_create(struct rte_crypto_vdev_init_params *init_params)
 {
        struct rte_cryptodev *dev;
-       char crypto_dev_name[RTE_CRYPTODEV_NAME_MAX_LEN];
        struct zuc_private *internals;
        uint64_t cpu_flags = 0;
 
+       if (init_params->name[0] == '\0') {
+               int ret = rte_cryptodev_pmd_create_dev_name(
+                               init_params->name,
+                               RTE_STR(CRYPTODEV_NAME_ZUC_PMD));
+
+               if (ret < 0) {
+                       ZUC_LOG_ERR("failed to create unique name");
+                       return ret;
+               }
+       }
+
        /* Check CPU for supported vector instruction set */
        if (rte_cpu_get_flag_enabled(RTE_CPUFLAG_SSE4_1))
                cpu_flags |= RTE_CRYPTODEV_FF_CPU_SSE;
@@ -477,15 +465,7 @@ cryptodev_zuc_create(const char *name,
                return -EFAULT;
        }
 
-
-       /* Create a unique device name. */
-       if (create_unique_device_name(crypto_dev_name,
-                       RTE_CRYPTODEV_NAME_MAX_LEN) != 0) {
-               ZUC_LOG_ERR("failed to create unique cryptodev name");
-               return -EINVAL;
-       }
-
-       dev = rte_cryptodev_pmd_virtual_dev_init(crypto_dev_name,
+       dev = rte_cryptodev_pmd_virtual_dev_init(init_params->name,
                        sizeof(struct zuc_private), init_params->socket_id);
        if (dev == NULL) {
                ZUC_LOG_ERR("failed to create cryptodev vdev");
@@ -510,9 +490,10 @@ cryptodev_zuc_create(const char *name,
 
        return 0;
 init_error:
-       ZUC_LOG_ERR("driver %s: cryptodev_zuc_create failed", name);
+       ZUC_LOG_ERR("driver %s: cryptodev_zuc_create failed",
+                       init_params->name);
 
-       cryptodev_zuc_remove(crypto_dev_name);
+       cryptodev_zuc_remove(init_params->name);
        return -EFAULT;
 }
 
@@ -523,19 +504,23 @@ cryptodev_zuc_probe(const char *name,
        struct rte_crypto_vdev_init_params init_params = {
                RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_QUEUE_PAIRS,
                RTE_CRYPTODEV_VDEV_DEFAULT_MAX_NB_SESSIONS,
-               rte_socket_id()
+               rte_socket_id(),
+               {0}
        };
 
        rte_cryptodev_parse_vdev_init_params(&init_params, input_args);
 
        RTE_LOG(INFO, PMD, "Initialising %s on NUMA node %d\n", name,
                        init_params.socket_id);
+       if (init_params.name[0] != '\0')
+               RTE_LOG(INFO, PMD, "  User defined name = %s\n",
+                       init_params.name);
        RTE_LOG(INFO, PMD, "  Max number of queue pairs = %d\n",
                        init_params.max_nb_queue_pairs);
        RTE_LOG(INFO, PMD, "  Max number of sessions = %d\n",
                        init_params.max_nb_sessions);
 
-       return cryptodev_zuc_create(name, &init_params);
+       return cryptodev_zuc_create(&init_params);
 }
 
 static int