malloc: allow detaching from external memory

[dpdk.git] / lib / librte_eal / common / eal_memalloc.h

diff --git a/lib/librte_eal/common/eal_memalloc.h b/lib/librte_eal/common/eal_memalloc.h
index 8616793..af917c2 100644 (file)
--- a/lib/librte_eal/common/eal_memalloc.h
+++ b/lib/librte_eal/common/eal_memalloc.h
@@ -8,6 +8,7 @@
 #include <stdbool.h>
 
 #include <rte_memory.h>
+#include <rte_eal_memconfig.h>
 
 /*
  * Allocate segment of specified page size.
@@ -42,4 +43,51 @@ eal_memalloc_free_seg(struct rte_memseg *ms);
 int
 eal_memalloc_free_seg_bulk(struct rte_memseg **ms, int n_segs);
 
+/*
+ * Check if memory pointed to by `start` and of `length` that resides in
+ * memseg list `msl` is IOVA-contiguous.
+ */
+bool
+eal_memalloc_is_contig(const struct rte_memseg_list *msl, void *start,
+               size_t len);
+
+/* synchronize local memory map to primary process */
+int
+eal_memalloc_sync_with_primary(void);
+
+int
+eal_memalloc_mem_event_callback_register(const char *name,
+               rte_mem_event_callback_t clb, void *arg);
+
+int
+eal_memalloc_mem_event_callback_unregister(const char *name, void *arg);
+
+void
+eal_memalloc_mem_event_notify(enum rte_mem_event event, const void *start,
+               size_t len);
+
+int
+eal_memalloc_mem_alloc_validator_register(const char *name,
+               rte_mem_alloc_validator_t clb, int socket_id, size_t limit);
+
+int
+eal_memalloc_mem_alloc_validator_unregister(const char *name, int socket_id);
+
+int
+eal_memalloc_mem_alloc_validate(int socket_id, size_t new_len);
+
+/* returns fd or -errno */
+int
+eal_memalloc_get_seg_fd(int list_idx, int seg_idx);
+
+/* returns 0 or -errno */
+int
+eal_memalloc_set_seg_fd(int list_idx, int seg_idx, int fd);
+
+int
+eal_memalloc_get_seg_fd_offset(int list_idx, int seg_idx, size_t *offset);
+
+int
+eal_memalloc_init(void);
+
 #endif /* EAL_MEMALLOC_H */