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authorDamjan Marion <damarion@cisco.com>2022-02-10 15:01:03 +0100
committerDamjan Marion <damarion@cisco.com>2022-02-10 19:12:50 +0100
commitefeea5b111db9075ffdab73191f6343f6872bfb2 (patch)
tree3cf2be9242aa0fb83499a769a8464e3d93df1748 /src/vnet
parentf5756175e6296939c3d580c2120306ba28bab91b (diff)
vlib: vlib frame bitmaps
Special bitmaps with VLIB_FRAME_SIZE bits. Type: improvement Change-Id: I48747e422e519e7b5e930fa720397459d3adbb8e Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vnet')
-rw-r--r--src/vnet/interface_output.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/src/vnet/interface_output.c b/src/vnet/interface_output.c
index cf64eeed093..6d5697deac4 100644
--- a/src/vnet/interface_output.c
+++ b/src/vnet/interface_output.c
@@ -405,7 +405,7 @@ enqueue_one_to_tx_node (vlib_main_t *vm, vlib_node_runtime_t *node, u32 *ppqi,
u32 n_vectors, u32 n_left, u32 next_index)
{
u32 tmp[VLIB_FRAME_SIZE];
- u64 mask[VLIB_FRAME_SIZE / 64] = {};
+ vlib_frame_bitmap_t mask = {};
vlib_frame_t *f;
vnet_hw_if_tx_frame_t *tf;
u32 *to;
@@ -1259,8 +1259,7 @@ VLIB_NODE_FN (vnet_interface_output_arc_end_node)
vnet_hw_interface_t *hi;
vlib_buffer_t *bufs[VLIB_FRAME_SIZE], **b = bufs;
u32 sw_if_indices[VLIB_FRAME_SIZE], *sw_if_index = sw_if_indices;
- u64 used_elts[VLIB_FRAME_SIZE / 64] = {};
- u64 mask[VLIB_FRAME_SIZE / 64] = {};
+ vlib_frame_bitmap_t used_elts = {}, mask = {};
u32 *tmp, *from, n_left, n_comp, n_p_comp, swif, off;
u16 next_index;
void *ptr[VLIB_FRAME_SIZE], **p = ptr;
@@ -1350,8 +1349,7 @@ drop:
if (n_left)
{
/* store comparison mask so we can find next unused element */
- for (int i = 0; i < ARRAY_LEN (used_elts); i++)
- used_elts[i] |= mask[i];
+ vlib_frame_bitmap_or (used_elts, mask);
/* fine first unused sw_if_index by scanning trough used_elts bitmap */
while (PREDICT_FALSE (used_elts[off] == ~0))