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authorDamjan Marion <damarion@cisco.com>2017-04-05 19:18:20 +0200
committerDave Barach <openvpp@barachs.net>2017-04-06 11:31:39 +0000
commit586afd762bfa149f5ca167bd5fd5a0cd59ce94fe (patch)
tree808b57c61e0fe1a181871bb1ad94398c5ba42671 /src/vnet/ip/ip4_forward.c
parentbc799c92d761a2d45105aa6a1685b3663687d2a4 (diff)
Use thread local storage for thread index
This patch deprecates stack-based thread identification, Also removes requirement that thread stacks are adjacent. Finally, possibly annoying for some folks, it renames all occurences of cpu_index and cpu_number with thread index. Using word "cpu" is misleading here as thread can be migrated ti different CPU, and also it is not related to linux cpu index. Change-Id: I68cdaf661e701d2336fc953dcb9978d10a70f7c1 Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vnet/ip/ip4_forward.c')
-rw-r--r--src/vnet/ip/ip4_forward.c34
1 files changed, 17 insertions, 17 deletions
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c
index ee1703e735e..fdfe7f63dfc 100644
--- a/src/vnet/ip/ip4_forward.c
+++ b/src/vnet/ip/ip4_forward.c
@@ -75,7 +75,7 @@ ip4_lookup_inline (vlib_main_t * vm,
vlib_combined_counter_main_t *cm = &load_balance_main.lbm_to_counters;
u32 n_left_from, n_left_to_next, *from, *to_next;
ip_lookup_next_t next;
- u32 cpu_index = os_get_cpu_number ();
+ u32 thread_index = vlib_get_thread_index ();
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
@@ -292,19 +292,19 @@ ip4_lookup_inline (vlib_main_t * vm,
vnet_buffer (p3)->ip.adj_index[VLIB_TX] = dpo3->dpoi_index;
vlib_increment_combined_counter
- (cm, cpu_index, lb_index0, 1,
+ (cm, thread_index, lb_index0, 1,
vlib_buffer_length_in_chain (vm, p0)
+ sizeof (ethernet_header_t));
vlib_increment_combined_counter
- (cm, cpu_index, lb_index1, 1,
+ (cm, thread_index, lb_index1, 1,
vlib_buffer_length_in_chain (vm, p1)
+ sizeof (ethernet_header_t));
vlib_increment_combined_counter
- (cm, cpu_index, lb_index2, 1,
+ (cm, thread_index, lb_index2, 1,
vlib_buffer_length_in_chain (vm, p2)
+ sizeof (ethernet_header_t));
vlib_increment_combined_counter
- (cm, cpu_index, lb_index3, 1,
+ (cm, thread_index, lb_index3, 1,
vlib_buffer_length_in_chain (vm, p3)
+ sizeof (ethernet_header_t));
@@ -392,7 +392,7 @@ ip4_lookup_inline (vlib_main_t * vm,
vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
vlib_increment_combined_counter
- (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0));
+ (cm, thread_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0));
from += 1;
to_next += 1;
@@ -479,7 +479,7 @@ ip4_load_balance (vlib_main_t * vm,
vlib_combined_counter_main_t *cm = &load_balance_main.lbm_via_counters;
u32 n_left_from, n_left_to_next, *from, *to_next;
ip_lookup_next_t next;
- u32 cpu_index = os_get_cpu_number ();
+ u32 thread_index = vlib_get_thread_index ();
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
@@ -584,9 +584,9 @@ ip4_load_balance (vlib_main_t * vm,
vnet_buffer (p1)->ip.adj_index[VLIB_TX] = dpo1->dpoi_index;
vlib_increment_combined_counter
- (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0));
+ (cm, thread_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0));
vlib_increment_combined_counter
- (cm, cpu_index, lbi1, 1, vlib_buffer_length_in_chain (vm, p1));
+ (cm, thread_index, lbi1, 1, vlib_buffer_length_in_chain (vm, p1));
vlib_validate_buffer_enqueue_x2 (vm, node, next,
to_next, n_left_to_next,
@@ -639,7 +639,7 @@ ip4_load_balance (vlib_main_t * vm,
vnet_buffer (p0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
vlib_increment_combined_counter
- (cm, cpu_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0));
+ (cm, thread_index, lbi0, 1, vlib_buffer_length_in_chain (vm, p0));
vlib_validate_buffer_enqueue_x1 (vm, node, next,
to_next, n_left_to_next,
@@ -2330,7 +2330,7 @@ ip4_rewrite_inline (vlib_main_t * vm,
n_left_from = frame->n_vectors;
next_index = node->cached_next_index;
- u32 cpu_index = os_get_cpu_number ();
+ u32 thread_index = vlib_get_thread_index ();
while (n_left_from > 0)
{
@@ -2379,9 +2379,9 @@ ip4_rewrite_inline (vlib_main_t * vm,
if (do_counters)
{
vlib_prefetch_combined_counter (&adjacency_counters,
- cpu_index, adj_index0);
+ thread_index, adj_index0);
vlib_prefetch_combined_counter (&adjacency_counters,
- cpu_index, adj_index1);
+ thread_index, adj_index1);
}
ip0 = vlib_buffer_get_current (p0);
@@ -2527,13 +2527,13 @@ ip4_rewrite_inline (vlib_main_t * vm,
{
vlib_increment_combined_counter
(&adjacency_counters,
- cpu_index,
+ thread_index,
adj_index0, 1,
vlib_buffer_length_in_chain (vm, p0) + rw_len0);
vlib_increment_combined_counter
(&adjacency_counters,
- cpu_index,
+ thread_index,
adj_index1, 1,
vlib_buffer_length_in_chain (vm, p1) + rw_len1);
}
@@ -2618,7 +2618,7 @@ ip4_rewrite_inline (vlib_main_t * vm,
if (do_counters)
vlib_prefetch_combined_counter (&adjacency_counters,
- cpu_index, adj_index0);
+ thread_index, adj_index0);
/* Guess we are only writing on simple Ethernet header. */
vnet_rewrite_one_header (adj0[0], ip0, sizeof (ethernet_header_t));
@@ -2637,7 +2637,7 @@ ip4_rewrite_inline (vlib_main_t * vm,
if (do_counters)
vlib_increment_combined_counter
(&adjacency_counters,
- cpu_index, adj_index0, 1,
+ thread_index, adj_index0, 1,
vlib_buffer_length_in_chain (vm, p0) + rw_len0);
/* Check MTU of outgoing interface. */