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authorDamjan Marion <damarion@cisco.com>2017-03-06 11:53:10 +0100
committerNeale Ranns <nranns@cisco.com>2017-03-06 13:41:40 +0000
commit363640db0ea658f268082407e767f37f6ec336b0 (patch)
treea4e26f12db96c93a3d21c673821193f4e0edc02a
parent53865c0e55c2fa0347df4d8338dca5f709c31f16 (diff)
Quad loop interface-output node
Change-Id: I0c24d9af90241083ae56b1d52239d2d55e70b65e Signed-off-by: Damjan Marion <damarion@cisco.com>
-rw-r--r--src/vnet/interface_output.c61
1 files changed, 48 insertions, 13 deletions
diff --git a/src/vnet/interface_output.c b/src/vnet/interface_output.c
index 475b0b935af..abac50b6837 100644
--- a/src/vnet/interface_output.c
+++ b/src/vnet/interface_output.c
@@ -427,7 +427,7 @@ vnet_interface_output_node (vlib_main_t * vm,
vnet_hw_interface_t *hi;
u32 n_left_to_tx, *from, *from_end, *to_tx;
u32 n_bytes, n_buffers, n_packets;
- u32 n_bytes_b0, n_bytes_b1;
+ u32 n_bytes_b0, n_bytes_b1, n_bytes_b2, n_bytes_b3;
u32 cpu_index = vm->cpu_index;
vnet_interface_main_t *im = &vnm->interface_main;
u32 next_index = VNET_INTERFACE_OUTPUT_NEXT_TX;
@@ -492,58 +492,76 @@ vnet_interface_output_node (vlib_main_t * vm,
than VNET_FRAME_SIZE vectors in it. */
vlib_get_new_next_frame (vm, node, next_index, to_tx, n_left_to_tx);
- while (from + 4 <= from_end && n_left_to_tx >= 2)
+ while (from + 8 <= from_end && n_left_to_tx >= 4)
{
- u32 bi0, bi1;
- vlib_buffer_t *b0, *b1;
- u32 tx_swif0, tx_swif1;
+ u32 bi0, bi1, bi2, bi3;
+ vlib_buffer_t *b0, *b1, *b2, *b3;
+ u32 tx_swif0, tx_swif1, tx_swif2, tx_swif3;
/* Prefetch next iteration. */
- vlib_prefetch_buffer_with_index (vm, from[2], LOAD);
- vlib_prefetch_buffer_with_index (vm, from[3], LOAD);
+ vlib_prefetch_buffer_with_index (vm, from[4], LOAD);
+ vlib_prefetch_buffer_with_index (vm, from[5], LOAD);
+ vlib_prefetch_buffer_with_index (vm, from[6], LOAD);
+ vlib_prefetch_buffer_with_index (vm, from[7], LOAD);
bi0 = from[0];
bi1 = from[1];
+ bi2 = from[2];
+ bi3 = from[3];
to_tx[0] = bi0;
to_tx[1] = bi1;
- from += 2;
- to_tx += 2;
- n_left_to_tx -= 2;
+ to_tx[2] = bi2;
+ to_tx[3] = bi3;
+ from += 4;
+ to_tx += 4;
+ n_left_to_tx -= 4;
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
+ b2 = vlib_get_buffer (vm, bi2);
+ b3 = vlib_get_buffer (vm, bi3);
/* Be grumpy about zero length buffers for benefit of
driver tx function. */
ASSERT (b0->current_length > 0);
ASSERT (b1->current_length > 0);
+ ASSERT (b2->current_length > 0);
+ ASSERT (b3->current_length > 0);
n_bytes_b0 = vlib_buffer_length_in_chain (vm, b0);
n_bytes_b1 = vlib_buffer_length_in_chain (vm, b1);
+ n_bytes_b2 = vlib_buffer_length_in_chain (vm, b2);
+ n_bytes_b3 = vlib_buffer_length_in_chain (vm, b3);
tx_swif0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
tx_swif1 = vnet_buffer (b1)->sw_if_index[VLIB_TX];
+ tx_swif2 = vnet_buffer (b2)->sw_if_index[VLIB_TX];
+ tx_swif3 = vnet_buffer (b3)->sw_if_index[VLIB_TX];
n_bytes += n_bytes_b0 + n_bytes_b1;
- n_packets += 2;
+ n_bytes += n_bytes_b2 + n_bytes_b3;
+ n_packets += 4;
if (PREDICT_FALSE (current_config_index != ~0))
{
b0->feature_arc_index = arc;
b1->feature_arc_index = arc;
+ b2->feature_arc_index = arc;
+ b3->feature_arc_index = arc;
b0->current_config_index = current_config_index;
b1->current_config_index = current_config_index;
+ b2->current_config_index = current_config_index;
+ b3->current_config_index = current_config_index;
}
+ /* update vlan subif tx counts, if required */
if (PREDICT_FALSE (tx_swif0 != rt->sw_if_index))
{
- /* update vlan subif tx counts, if required */
vlib_increment_combined_counter (im->combined_sw_if_counters +
VNET_INTERFACE_COUNTER_TX,
cpu_index, tx_swif0, 1,
n_bytes_b0);
}
- /* update vlan subif tx counts, if required */
if (PREDICT_FALSE (tx_swif1 != rt->sw_if_index))
{
@@ -552,6 +570,23 @@ vnet_interface_output_node (vlib_main_t * vm,
cpu_index, tx_swif1, 1,
n_bytes_b1);
}
+
+ if (PREDICT_FALSE (tx_swif2 != rt->sw_if_index))
+ {
+
+ vlib_increment_combined_counter (im->combined_sw_if_counters +
+ VNET_INTERFACE_COUNTER_TX,
+ cpu_index, tx_swif2, 1,
+ n_bytes_b2);
+ }
+ if (PREDICT_FALSE (tx_swif3 != rt->sw_if_index))
+ {
+
+ vlib_increment_combined_counter (im->combined_sw_if_counters +
+ VNET_INTERFACE_COUNTER_TX,
+ cpu_index, tx_swif3, 1,
+ n_bytes_b3);
+ }
}
while (from + 1 <= from_end && n_left_to_tx >= 1)