xen: allow determining DOM0 at runtime

[dpdk.git] / lib / librte_mempool / rte_mempool.c

diff --git a/lib/librte_mempool/rte_mempool.c b/lib/librte_mempool/rte_mempool.c
index e57cbbd..f53076a 100644 (file)
--- a/lib/librte_mempool/rte_mempool.c
+++ b/lib/librte_mempool/rte_mempool.c
@@ -375,6 +375,26 @@ rte_mempool_xmem_usage(void *vaddr, uint32_t elt_num, size_t elt_sz,
        return usz;
 }
 
+#ifndef RTE_LIBRTE_XEN_DOM0
+/* stub if DOM0 support not configured */
+struct rte_mempool *
+rte_dom0_mempool_create(const char *name __rte_unused,
+                       unsigned n __rte_unused,
+                       unsigned elt_size __rte_unused,
+                       unsigned cache_size __rte_unused,
+                       unsigned private_data_size __rte_unused,
+                       rte_mempool_ctor_t *mp_init __rte_unused,
+                       void *mp_init_arg __rte_unused,
+                       rte_mempool_obj_ctor_t *obj_init __rte_unused,
+                       void *obj_init_arg __rte_unused,
+                       int socket_id __rte_unused,
+                       unsigned flags __rte_unused)
+{
+       rte_errno = EINVAL;
+       return NULL;
+}
+#endif
+
 /* create the mempool */
 struct rte_mempool *
 rte_mempool_create(const char *name, unsigned n, unsigned elt_size,
@@ -383,20 +403,20 @@ rte_mempool_create(const char *name, unsigned n, unsigned elt_size,
                   rte_mempool_obj_ctor_t *obj_init, void *obj_init_arg,
                   int socket_id, unsigned flags)
 {
-#ifdef RTE_LIBRTE_XEN_DOM0
-       return rte_dom0_mempool_create(name, n, elt_size,
-               cache_size, private_data_size,
-               mp_init, mp_init_arg,
-               obj_init, obj_init_arg,
-               socket_id, flags);
-#else
-       return rte_mempool_xmem_create(name, n, elt_size,
-               cache_size, private_data_size,
-               mp_init, mp_init_arg,
-               obj_init, obj_init_arg,
-               socket_id, flags,
-               NULL, NULL, MEMPOOL_PG_NUM_DEFAULT, MEMPOOL_PG_SHIFT_MAX);
-#endif
+       if (is_xen_dom0_supported())
+               return rte_dom0_mempool_create(name, n, elt_size,
+                                              cache_size, private_data_size,
+                                              mp_init, mp_init_arg,
+                                              obj_init, obj_init_arg,
+                                              socket_id, flags);
+       else
+               return rte_mempool_xmem_create(name, n, elt_size,
+                                              cache_size, private_data_size,
+                                              mp_init, mp_init_arg,
+                                              obj_init, obj_init_arg,
+                                              socket_id, flags,
+                                              NULL, NULL, MEMPOOL_PG_NUM_DEFAULT,
+                                              MEMPOOL_PG_SHIFT_MAX);
 }
 
 /*