v6: memtank introduction

For analogy with mempool, named this structure memtank.
Same a s mempool it allows to alloc/free objects of fixed size
in a lightweight manner (not as lightweight as mempool,
but hopefully close enough).
The whole idea is that alloc/free is used at fast-path and don't
allocate/free more than *min_free* objects at one call.
So for majority of cases our fast-path alloc/free should be lightweight
(LIFO enqueue/dequeue operations).
Also user will need to call grow/shrink periodically
(ideally from the slow-path) to make sure there is enough
free objects in the tank.
Internally it is just a simple LIFO for up to *max_free* objects plus
a list of memory buffers (memchunk) from where these objects were
allocated.

v1 -> v2
 - Added UT
 - Fixed few bugs

v2 -> v3
 - extend UT with more parameters

v3 -> v4
 - add object alignement as parameter for memtank_create
 - extend UT with more parameters
 - added memtank dump routine

v4 -> v5
 - fixed few bugs inside memtank lib
 - extend UT with:
   - new test case
   - new command-line options: '-s <obj_size>', '-m <mem_func>'

v5 -> v6
 - extend memtank dump to collect/display extra information
 - make memtank dump routine MT safe
 - add memtank sanity check function
 - add proper comments for pubic API

Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Change-Id: I8939772577f5d9e293088eaa9a9fe316c3fe8f87

1 files changed, 42 insertions, 0 deletions

diff --git a/test/memtank/Makefile b/test/memtank/Makefile
new file mode 100644
index 0000000..b8e4483
--- /dev/null
+++ b/test/memtank/Makefile
@@ -0,0 +1,42 @@
+# Copyright (c) 2019 Intel Corporation.
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at:
+#
+#     http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+ifeq ($(RTE_SDK),)
+$(error "Please define RTE_SDK environment variable")
+endif
+
+ifeq ($(RTE_TARGET),)
+$(error "Please define RTE_TARGET environment variable")
+endif
+
+ifeq ($(TLDK_ROOT),)
+$(error "Please define TLDK_ROOT environment variable")
+endif
+
+include $(RTE_SDK)/mk/rte.vars.mk
+
+# binary name
+APP = test_memtank
+
+# all source are stored in SRCS-y
+SRCS-y += test_memtank.c
+
+CFLAGS += $(WERROR_FLAGS)
+CFLAGS += -I$(RTE_OUTPUT)/include
+
+LDLIBS += -L$(RTE_OUTPUT)/lib
+LDLIBS += -ltle_memtank
+
+EXTRA_CFLAGS += -O3
+
+include $(TLDK_ROOT)/mk/tle.app.mk