From e09a2337b82d2dcb5b7379a9581477af291d1a75 Mon Sep 17 00:00:00 2001 From: Benoît Ganne Date: Tue, 9 Mar 2021 15:37:49 +0100 Subject: bufmon: add buffer monitoring plugin MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 --- src/vlib/buffer.c | 34 +++++++++++++++++++++++++++------- 1 file changed, 27 insertions(+), 7 deletions(-) (limited to 'src/vlib/buffer.c') diff --git a/src/vlib/buffer.c b/src/vlib/buffer.c index adaafa36f5d..71f84d377af 100644 --- a/src/vlib/buffer.c +++ b/src/vlib/buffer.c @@ -615,20 +615,26 @@ format_vlib_buffer_pool (u8 * s, va_list * va) return s; } -static clib_error_t * -show_buffers (vlib_main_t * vm, - unformat_input_t * input, vlib_cli_command_t * cmd) +u8 * +format_vlib_buffer_pool_all (u8 *s, va_list *va) { + vlib_main_t *vm = va_arg (*va, vlib_main_t *); vlib_buffer_main_t *bm = vm->buffer_main; vlib_buffer_pool_t *bp; - vlib_cli_output (vm, "%U", format_vlib_buffer_pool, vm, 0); + s = format (s, "%U", format_vlib_buffer_pool, vm, 0); - /* *INDENT-OFF* */ vec_foreach (bp, bm->buffer_pools) - vlib_cli_output (vm, "%U", format_vlib_buffer_pool, vm, bp); - /* *INDENT-ON* */ + s = format (s, "\n%U", format_vlib_buffer_pool, vm, bp); + + return s; +} +static clib_error_t * +show_buffers (vlib_main_t *vm, unformat_input_t *input, + vlib_cli_command_t *cmd) +{ + vlib_cli_output (vm, "%U", format_vlib_buffer_pool_all, vm); return 0; } @@ -971,6 +977,20 @@ vlib_buffer_alloc_may_fail (vlib_main_t * vm, u32 n_buffers) } #endif +__clib_export int +vlib_buffer_set_alloc_free_callback ( + vlib_main_t *vm, vlib_buffer_alloc_free_callback_t *alloc_callback_fn, + vlib_buffer_alloc_free_callback_t *free_callback_fn) +{ + vlib_buffer_main_t *bm = vm->buffer_main; + if ((alloc_callback_fn && bm->alloc_callback_fn) || + (free_callback_fn && bm->free_callback_fn)) + return 1; + bm->alloc_callback_fn = alloc_callback_fn; + bm->free_callback_fn = free_callback_fn; + return 0; +} + /** @endcond */ /* * fd.io coding-style-patch-verification: ON -- cgit 1.2.3-korg