buffers: add page-size config

Type: feature

Add a `buffers {page-size}` parameter to specify page size
for buffers. This also fixes an issue with the parsing in
unformat_log2_page_size.

Change-Id: I7d7b1fa0bb7febaa7509cf2c625882f07eeafaad
Signed-off-by: Nathan Skrzypczak <nathan.skrzypczak@gmail.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/docs/gettingstarted/users/configuring/startup.rst b/docs/gettingstarted/users/configuring/startup.rst
index 69d6ee5e3ea..e594b6a08a4 100644
--- a/docs/gettingstarted/users/configuring/startup.rst
+++ b/docs/gettingstarted/users/configuring/startup.rst
@@ -579,6 +579,7 @@ The buffers Section
    buffers {
       buffers-per-numa 128000
       default data-size 2048
+      page-size default-hugepage
    }
 
 buffers-per-numa number
@@ -601,6 +602,19 @@ Size of buffer data area, default is 2048
 
    default data-size 2048
 
+page-size number
+^^^^^^^^^^^^^^^^
+
+Set the page size for buffer allocation
+
+.. code-block:: console
+
+   page-size 4K
+   page-size 2M
+   page-size 1G
+   page-size default
+   page-size default-hugepage
+
 
 The dpdk Section
 ----------------