summaryrefslogtreecommitdiffstats
path: root/src/vlib/buffer.c
diff options
context:
space:
mode:
authorDamjan Marion <damarion@cisco.com>2018-10-24 17:08:26 +0200
committerMarco Varlese <marco.varlese@suse.de>2018-10-25 10:52:42 +0000
commit567e61d09cd00174203eff85f63a598420476951 (patch)
tree528e0fb979a25f990a552cbb3c4b14d491cff678 /src/vlib/buffer.c
parent3935fc8527c340535a00108b78f3de064df50a7f (diff)
pmalloc: support for 4K pages
Change-Id: Iecceffe06a92660976ebb58cd3cbec4be8931db0 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib/buffer.c')
-rw-r--r--src/vlib/buffer.c28
1 files changed, 24 insertions, 4 deletions
diff --git a/src/vlib/buffer.c b/src/vlib/buffer.c
index 22cf7999be7..ff91d3b920c 100644
--- a/src/vlib/buffer.c
+++ b/src/vlib/buffer.c
@@ -55,6 +55,9 @@ static u32 vlib_buffer_physmem_sz = 14 << 20;
vlib_buffer_main_t buffer_main;
+/* logging */
+static vlib_log_class_t buffer_log_default;
+
uword
vlib_buffer_length_in_chain_slow_path (vlib_main_t * vm,
vlib_buffer_t * b_first)
@@ -963,6 +966,9 @@ vlib_buffer_main_init (struct vlib_main_t * vm)
clib_error_t *error;
u32 physmem_map_index;
u8 pool_index;
+ int log2_page_size = 0;
+
+ buffer_log_default = vlib_log_register_class ("buffer", 0);
if (vlib_buffer_callbacks)
{
@@ -981,10 +987,24 @@ vlib_buffer_main_init (struct vlib_main_t * vm)
&vlib_buffer_delete_free_list_internal;
clib_spinlock_init (&bm->buffer_known_hash_lockp);
- if ((error = vlib_physmem_shared_map_create (vm, "buffers",
- vlib_buffer_physmem_sz,
- CLIB_PMALLOC_NUMA_LOCAL,
- &physmem_map_index)))
+retry:
+ error = vlib_physmem_shared_map_create (vm, "buffers",
+ vlib_buffer_physmem_sz,
+ log2_page_size,
+ CLIB_PMALLOC_NUMA_LOCAL,
+ &physmem_map_index);
+
+ if (error && log2_page_size == 0)
+ {
+ vlib_log_warn (buffer_log_default, "%U", format_clib_error, error);
+ clib_error_free (error);
+ vlib_log_warn (buffer_log_default, "falling back to non-hugepage "
+ "backed buffer pool");
+ log2_page_size = min_log2 (clib_mem_get_page_size ());
+ goto retry;
+ }
+
+ if (error)
return error;
pool_index = vlib_buffer_register_physmem_map (vm, physmem_map_index);