New upstream version 18.08upstream/18.08

Change-Id: I32fdf5e5016556d9c0a6d88ddaf1fc468961790a
Signed-off-by: Luca Boccassi <luca.boccassi@gmail.com>

1 files changed, 82 insertions, 0 deletions

diff --git a/lib/librte_eal/common/eal_memalloc.h b/lib/librte_eal/common/eal_memalloc.h
new file mode 100644
index 00000000..36bb1a02
--- /dev/null
+++ b/lib/librte_eal/common/eal_memalloc.h
@@ -0,0 +1,82 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2017-2018 Intel Corporation
+ */
+
+#ifndef EAL_MEMALLOC_H
+#define EAL_MEMALLOC_H
+
+#include <stdbool.h>
+
+#include <rte_memory.h>
+#include <rte_eal_memconfig.h>
+
+/*
+ * Allocate segment of specified page size.
+ */
+struct rte_memseg *
+eal_memalloc_alloc_seg(size_t page_sz, int socket);
+
+/*
+ * Allocate `n_segs` segments.
+ *
+ * Note: `ms` can be NULL.
+ *
+ * Note: it is possible to request best-effort allocation by setting `exact` to
+ * `false`, in which case allocator will return however many pages it managed to
+ * allocate successfully.
+ */
+int
+eal_memalloc_alloc_seg_bulk(struct rte_memseg **ms, int n_segs, size_t page_sz,
+		int socket, bool exact);
+
+/*
+ * Deallocate segment
+ */
+int
+eal_memalloc_free_seg(struct rte_memseg *ms);
+
+/*
+ * Deallocate `n_segs` segments. Returns 0 on successful deallocation of all
+ * segments, returns -1 on error. Any segments that could have been deallocated,
+ * will be deallocated even in case of error.
+ */
+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);
+
+int
+eal_memalloc_init(void);
+
+#endif /* EAL_MEMALLOC_H */