buffers: add compile-time option to set buffer alignment

[vpp.git] / src / vlib / CMakeLists.txt

diff --git a/src/vlib/CMakeLists.txt b/src/vlib/CMakeLists.txt
index 76de4ed..9c41216 100644 (file)
--- a/src/vlib/CMakeLists.txt
+++ b/src/vlib/CMakeLists.txt
@@ -22,6 +22,12 @@ else()
   set(BUFFER_ALLOC_FAULT_INJECTOR 0 CACHE STRING "fault injector off")
 endif()
 
+if(VPP_PLATFORM_BUFFER_ALIGN)
+  set(VLIB_BUFFER_ALIGN ${VPP_PLATFORM_BUFFER_ALIGN})
+else()
+  set(VLIB_BUFFER_ALIGN ${VPP_CACHE_LINE_SIZE})
+endif()
+
 set(PRE_DATA_SIZE 128 CACHE STRING "Buffer headroom size.")
 
 if (CMAKE_BUILD_TYPE_UC STREQUAL "DEBUG")