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path: root/src/vnet/l2/l2_patch.c
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Diffstat (limited to 'src/vnet/l2/l2_patch.c')
-rw-r--r--src/vnet/l2/l2_patch.c282
1 files changed, 114 insertions, 168 deletions
diff --git a/src/vnet/l2/l2_patch.c b/src/vnet/l2/l2_patch.c
index 83e14a79ebb..e2d2a679662 100644
--- a/src/vnet/l2/l2_patch.c
+++ b/src/vnet/l2/l2_patch.c
@@ -77,182 +77,126 @@ typedef enum
L2_PATCH_N_NEXT,
} l2_patch_next_t;
-static uword
-l2_patch_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+static_always_inline void
+l2_patch_trace (vlib_main_t * vm, vlib_node_runtime_t * node,
+ l2_patch_main_t * l2pm, vlib_buffer_t * b, u32 sw_if_index)
{
- u32 n_left_from, *from, *to_next;
- l2_patch_next_t next_index;
- l2_patch_main_t *l2pm = &l2_patch_main;
- vlib_node_t *n = vlib_get_node (vm, l2_patch_node.index);
- u32 node_counter_base_index = n->error_heap_index;
- vlib_error_main_t *em = &vm->error_main;
+ l2_patch_trace_t *t;
- from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors;
- next_index = node->cached_next_index;
+ if ((b->flags & VLIB_BUFFER_IS_TRACED) == 0)
+ return;
- while (n_left_from > 0)
- {
- u32 n_left_to_next;
+ t = vlib_add_trace (vm, node, b, sizeof (*t));
+ t->rx_sw_if_index = sw_if_index;
+ t->tx_sw_if_index = l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index];
+}
- vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+static_always_inline void
+l2_patch_inline (vlib_main_t * vm, vlib_node_runtime_t * node,
+ l2_patch_main_t * l2pm, vlib_buffer_t ** b, u16 * next,
+ u32 n_left, int do_trace)
+{
+ u32 sw_if_index[4];
- while (n_left_from >= 8 && n_left_to_next >= 4)
+ while (n_left >= 4)
+ {
+ /* Prefetch next iteration. */
+ if (n_left >= 8)
{
- u32 bi0, bi1, bi2, bi3;
- vlib_buffer_t *b0, *b1, *b2, *b3;
- u32 next0, next1, next2, next3;
- u32 sw_if_index0, sw_if_index1, sw_if_index2, sw_if_index3;
-
- /* Prefetch next iteration. */
- {
- vlib_buffer_t *p4, *p5, *p6, *p7;
-
- p4 = vlib_get_buffer (vm, from[4]);
- p5 = vlib_get_buffer (vm, from[5]);
- p6 = vlib_get_buffer (vm, from[6]);
- p7 = vlib_get_buffer (vm, from[7]);
-
- vlib_prefetch_buffer_header (p4, LOAD);
- vlib_prefetch_buffer_header (p5, LOAD);
- vlib_prefetch_buffer_header (p6, LOAD);
- vlib_prefetch_buffer_header (p7, LOAD);
- }
-
- /* speculatively enqueue b0 and b1 to the current next frame */
- to_next[0] = bi0 = from[0];
- to_next[1] = bi1 = from[1];
- to_next[2] = bi2 = from[2];
- to_next[3] = bi3 = from[3];
- from += 4;
- to_next += 4;
- n_left_from -= 4;
- n_left_to_next -= 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);
-
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
- sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
- sw_if_index2 = vnet_buffer (b2)->sw_if_index[VLIB_RX];
- sw_if_index3 = vnet_buffer (b3)->sw_if_index[VLIB_RX];
-
- ASSERT (l2pm->tx_next_by_rx_sw_if_index[sw_if_index0] != ~0);
- ASSERT (l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index0] != ~0);
- ASSERT (l2pm->tx_next_by_rx_sw_if_index[sw_if_index1] != ~0);
- ASSERT (l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index1] != ~0);
- ASSERT (l2pm->tx_next_by_rx_sw_if_index[sw_if_index2] != ~0);
- ASSERT (l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index2] != ~0);
- ASSERT (l2pm->tx_next_by_rx_sw_if_index[sw_if_index3] != ~0);
- ASSERT (l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index3] != ~0);
-
- next0 = l2pm->tx_next_by_rx_sw_if_index[sw_if_index0];
- next1 = l2pm->tx_next_by_rx_sw_if_index[sw_if_index1];
- next2 = l2pm->tx_next_by_rx_sw_if_index[sw_if_index2];
- next3 = l2pm->tx_next_by_rx_sw_if_index[sw_if_index3];
-
- vnet_buffer (b0)->sw_if_index[VLIB_TX] =
- l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index0];
- vnet_buffer (b1)->sw_if_index[VLIB_TX] =
- l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index1];
- vnet_buffer (b2)->sw_if_index[VLIB_TX] =
- l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index2];
- vnet_buffer (b3)->sw_if_index[VLIB_TX] =
- l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index3];
-
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2_patch_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->rx_sw_if_index = sw_if_index0;
- t->tx_sw_if_index =
- l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index0];
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2_patch_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->rx_sw_if_index = sw_if_index1;
- t->tx_sw_if_index =
- l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index1];
- }
- if (b2->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2_patch_trace_t *t =
- vlib_add_trace (vm, node, b2, sizeof (*t));
- t->rx_sw_if_index = sw_if_index2;
- t->tx_sw_if_index =
- l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index2];
- }
- if (b3->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2_patch_trace_t *t =
- vlib_add_trace (vm, node, b3, sizeof (*t));
- t->rx_sw_if_index = sw_if_index3;
- t->tx_sw_if_index =
- l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index3];
- }
- }
-
- /* verify speculative enqueues, maybe switch current next frame */
- vlib_validate_buffer_enqueue_x4 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, bi2, bi3,
- next0, next1, next2, next3);
+ vlib_buffer_t **p = b + 4;
+ vlib_prefetch_buffer_header (p[0], LOAD);
+ vlib_prefetch_buffer_header (p[1], LOAD);
+ vlib_prefetch_buffer_header (p[2], LOAD);
+ vlib_prefetch_buffer_header (p[3], LOAD);
}
- while (n_left_from > 0 && n_left_to_next > 0)
+ sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_RX];
+ sw_if_index[1] = vnet_buffer (b[1])->sw_if_index[VLIB_RX];
+ sw_if_index[2] = vnet_buffer (b[2])->sw_if_index[VLIB_RX];
+ sw_if_index[3] = vnet_buffer (b[3])->sw_if_index[VLIB_RX];
+
+ ASSERT (l2pm->tx_next_by_rx_sw_if_index[sw_if_index[0]] != ~0);
+ ASSERT (l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index[0]] != ~0);
+ ASSERT (l2pm->tx_next_by_rx_sw_if_index[sw_if_index[1]] != ~0);
+ ASSERT (l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index[1]] != ~0);
+ ASSERT (l2pm->tx_next_by_rx_sw_if_index[sw_if_index[2]] != ~0);
+ ASSERT (l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index[2]] != ~0);
+ ASSERT (l2pm->tx_next_by_rx_sw_if_index[sw_if_index[3]] != ~0);
+ ASSERT (l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index[3]] != ~0);
+
+ next[0] = l2pm->tx_next_by_rx_sw_if_index[sw_if_index[0]];
+ next[1] = l2pm->tx_next_by_rx_sw_if_index[sw_if_index[1]];
+ next[2] = l2pm->tx_next_by_rx_sw_if_index[sw_if_index[2]];
+ next[3] = l2pm->tx_next_by_rx_sw_if_index[sw_if_index[3]];
+
+ vnet_buffer (b[0])->sw_if_index[VLIB_TX] =
+ l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index[0]];
+ vnet_buffer (b[1])->sw_if_index[VLIB_TX] =
+ l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index[1]];
+ vnet_buffer (b[2])->sw_if_index[VLIB_TX] =
+ l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index[2]];
+ vnet_buffer (b[3])->sw_if_index[VLIB_TX] =
+ l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index[3]];
+
+ if (do_trace)
{
- u32 bi0;
- vlib_buffer_t *b0;
- u32 next0;
- u32 sw_if_index0;
-
- /* speculatively enqueue b0 to the current next frame */
- bi0 = from[0];
- to_next[0] = bi0;
- from += 1;
- to_next += 1;
- n_left_from -= 1;
- n_left_to_next -= 1;
-
- b0 = vlib_get_buffer (vm, bi0);
-
- sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
-
- ASSERT (l2pm->tx_next_by_rx_sw_if_index[sw_if_index0] != ~0);
- ASSERT (l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index0] != ~0);
-
- next0 = l2pm->tx_next_by_rx_sw_if_index[sw_if_index0];
- vnet_buffer (b0)->sw_if_index[VLIB_TX] =
- l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index0];
-
- if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
- {
- if (b0->flags & VLIB_BUFFER_IS_TRACED)
- {
- l2_patch_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->rx_sw_if_index = sw_if_index0;
- t->tx_sw_if_index =
- l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index0];
- }
- }
-
- /* verify speculative enqueue, maybe switch current next frame */
- vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, next0);
+ l2_patch_trace (vm, node, l2pm, b[0], sw_if_index[0]);
+ l2_patch_trace (vm, node, l2pm, b[1], sw_if_index[1]);
+ l2_patch_trace (vm, node, l2pm, b[2], sw_if_index[2]);
+ l2_patch_trace (vm, node, l2pm, b[3], sw_if_index[3]);
}
- vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ /* next */
+ next += 4;
+ b += 4;
+ n_left -= 4;
}
+ while (n_left)
+ {
+ sw_if_index[0] = vnet_buffer (b[0])->sw_if_index[VLIB_RX];
+
+ ASSERT (l2pm->tx_next_by_rx_sw_if_index[sw_if_index[0]] != ~0);
+ ASSERT (l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index[0]] != ~0);
+
+ next[0] = l2pm->tx_next_by_rx_sw_if_index[sw_if_index[0]];
+
+ vnet_buffer (b[0])->sw_if_index[VLIB_TX] =
+ l2pm->tx_sw_if_index_by_rx_sw_if_index[sw_if_index[0]];
+
+ if (do_trace)
+ l2_patch_trace (vm, node, l2pm, b[0], sw_if_index[0]);
+
+ /* next */
+ next += 1;
+ b += 1;
+ n_left -= 1;
+ }
+}
+
+VLIB_NODE_FN (l2_patch_node) (vlib_main_t * vm,
+ vlib_node_runtime_t * node,
+ vlib_frame_t * frame)
+{
+ u32 *from;
+ l2_patch_main_t *l2pm = &l2_patch_main;
+ vlib_node_t *n = vlib_get_node (vm, l2_patch_node.index);
+ u32 node_counter_base_index = n->error_heap_index;
+ vlib_error_main_t *em = &vm->error_main;
+ vlib_buffer_t *bufs[VLIB_FRAME_SIZE];
+ u16 nexts[VLIB_FRAME_SIZE];
+
+ from = vlib_frame_vector_args (frame);
+
+ vlib_get_buffers (vm, from, bufs, frame->n_vectors);
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ l2_patch_inline (vm, node, l2pm, bufs, nexts, frame->n_vectors, 1);
+ else
+ l2_patch_inline (vm, node, l2pm, bufs, nexts, frame->n_vectors, 0);
+
+ vlib_buffer_enqueue_to_next (vm, node, from, nexts, frame->n_vectors);
+
em->counters[node_counter_base_index + L2_PATCH_ERROR_PATCHED] +=
frame->n_vectors;
@@ -261,7 +205,6 @@ l2_patch_node_fn (vlib_main_t * vm,
/* *INDENT-OFF* */
VLIB_REGISTER_NODE (l2_patch_node, static) = {
- .function = l2_patch_node_fn,
.name = "l2-patch",
.vector_size = sizeof (u32),
.format_trace = format_l2_patch_trace,
@@ -279,9 +222,11 @@ VLIB_REGISTER_NODE (l2_patch_node, static) = {
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (l2_patch_node, l2_patch_node_fn)
- int vnet_l2_patch_add_del (u32 rx_sw_if_index, u32 tx_sw_if_index,
- int is_add)
+extern int
+vnet_l2_patch_add_del (u32 rx_sw_if_index, u32 tx_sw_if_index, int is_add);
+#ifndef CLIB_MARCH_VARIANT
+int
+vnet_l2_patch_add_del (u32 rx_sw_if_index, u32 tx_sw_if_index, int is_add)
{
l2_patch_main_t *l2pm = &l2_patch_main;
vnet_hw_interface_t *rxhi, *txhi;
@@ -339,6 +284,7 @@ VLIB_NODE_FUNCTION_MULTIARCH (l2_patch_node, l2_patch_node_fn)
return 0;
}
+#endif
static clib_error_t *
test_patch_command_fn (vlib_main_t * vm,
@@ -480,7 +426,7 @@ VLIB_CLI_COMMAND (show_l2patch_cli, static) = {
};
/* *INDENT-ON* */
-clib_error_t *
+static clib_error_t *
l2_patch_init (vlib_main_t * vm)
{
l2_patch_main_t *mp = &l2_patch_main;