bufmon: add buffer monitoring plugin
This plugin allow to keep track of buffer usage in VPP graph nodes. The
main use is to detect buffer leakages.
Type: feature
Change-Id: Iadcf4ab98207fab6e2fa375060879bc2a25b711e
Signed-off-by: Benoît Ganne <bganne@cisco.com>
diff --git a/src/vlib/buffer.h b/src/vlib/buffer.h
index 349b732..b548adf 100644
--- a/src/vlib/buffer.h
+++ b/src/vlib/buffer.h
@@ -472,6 +472,10 @@
#define VLIB_BUFFER_MAX_NUMA_NODES 32
+typedef u32 (vlib_buffer_alloc_free_callback_t) (struct vlib_main_t *vm,
+ u8 buffer_pool_index,
+ u32 *buffers, u32 n_buffers);
+
typedef struct
{
CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
@@ -481,12 +485,9 @@
uword buffer_mem_size;
vlib_buffer_pool_t *buffer_pools;
- /* Hash table mapping buffer index into number
- 0 => allocated but free, 1 => allocated and not-free.
- If buffer index is not in hash table then this buffer
- has never been allocated. */
- uword *buffer_known_hash;
- clib_spinlock_t buffer_known_hash_lockp;
+ vlib_buffer_alloc_free_callback_t *alloc_callback_fn;
+ vlib_buffer_alloc_free_callback_t *free_callback_fn;
+
u8 default_buffer_pool_index_for_numa[VLIB_BUFFER_MAX_NUMA_NODES];
/* config */
@@ -495,12 +496,25 @@
u32 default_data_size;
clib_mem_page_sz_t log2_page_size;
+ /* Hash table mapping buffer index into number
+ 0 => allocated but free, 1 => allocated and not-free.
+ If buffer index is not in hash table then this buffer
+ has never been allocated. */
+ uword *buffer_known_hash;
+ clib_spinlock_t buffer_known_hash_lockp;
+
/* logging */
vlib_log_class_t log_default;
} vlib_buffer_main_t;
clib_error_t *vlib_buffer_main_init (struct vlib_main_t *vm);
+format_function_t format_vlib_buffer_pool_all;
+
+int vlib_buffer_set_alloc_free_callback (
+ struct vlib_main_t *vm, vlib_buffer_alloc_free_callback_t *alloc_callback_fn,
+ vlib_buffer_alloc_free_callback_t *free_callback_fn);
+
extern u16 __vlib_buffer_external_hdr_size;
#define VLIB_BUFFER_SET_EXT_HDR_SIZE(x) \
static void __clib_constructor \