+static inline struct mlx5_hlist *
+flow_dv_hlist_prepare(struct mlx5_dev_ctx_shared *sh, struct mlx5_hlist **phl,
+ const char *name, uint32_t size, bool direct_key,
+ bool lcores_share, void *ctx,
+ mlx5_list_create_cb cb_create,
+ mlx5_list_match_cb cb_match,
+ mlx5_list_remove_cb cb_remove,
+ mlx5_list_clone_cb cb_clone,
+ mlx5_list_clone_free_cb cb_clone_free)
+{
+ struct mlx5_hlist *hl;
+ struct mlx5_hlist *expected = NULL;
+ char s[MLX5_NAME_SIZE];
+
+ hl = __atomic_load_n(phl, __ATOMIC_SEQ_CST);
+ if (likely(hl))
+ return hl;
+ snprintf(s, sizeof(s), "%s_%s", sh->ibdev_name, name);
+ hl = mlx5_hlist_create(s, size, direct_key, lcores_share,
+ ctx, cb_create, cb_match, cb_remove, cb_clone,
+ cb_clone_free);
+ if (!hl) {
+ DRV_LOG(ERR, "%s hash creation failed", name);
+ rte_errno = ENOMEM;
+ return NULL;
+ }
+ if (!__atomic_compare_exchange_n(phl, &expected, hl, false,
+ __ATOMIC_SEQ_CST,
+ __ATOMIC_SEQ_CST)) {
+ mlx5_hlist_destroy(hl);
+ hl = __atomic_load_n(phl, __ATOMIC_SEQ_CST);
+ }
+ return hl;
+}
+