--- /dev/null
+/*
+ * l2_uu_fwd.c : Foward unknown unicast packets to BD's configured interface
+ *
+ * Copyright (c) 2018 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <vnet/l2/l2_bd.h>
+#include <vnet/l2/l2_input.h>
+
+#define foreach_l2_uu_fwd_error \
+_(L2_UU_FWD, "L2 UU fwd")
+
+typedef enum
+{
+#define _(sym,str) L2_UU_FWD_ERROR_##sym,
+ foreach_l2_uu_fwd_error
+#undef _
+ L2_UU_FWD_N_ERROR,
+} l2_uu_fwd_error_t;
+
+static char *l2_uu_fwd_error_strings[] = {
+#define _(sym,string) string,
+ foreach_l2_uu_fwd_error
+#undef _
+};
+
+typedef enum
+{
+ L2_UU_FWD_NEXT_DROP,
+ L2_UU_FWD_NEXT_L2_OUTPUT,
+ L2_UU_FWD_N_NEXT,
+} l2_uu_fwd_next_t;
+
+typedef struct
+{
+ u32 sw_if_index;
+} l2_uu_fwd_trace_t;
+
+/* packet trace format function */
+static u8 *
+format_l2_uu_fwd_trace (u8 * s, va_list * args)
+{
+ CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
+ CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
+ l2_uu_fwd_trace_t *t = va_arg (*args, l2_uu_fwd_trace_t *);
+
+ s = format (s, "l2-uu-fwd: sw_if_index %d", t->sw_if_index);
+ return s;
+}
+
+static uword
+l2_uu_fwd_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ u32 n_left_from, *from, *to_next;
+ l2_uu_fwd_next_t next_index;
+
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+ next_index = node->cached_next_index;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ while (n_left_from >= 8 && n_left_to_next >= 4)
+ {
+ const l2_bridge_domain_t *bdc0, *bdc1, *bdc2, *bdc3;
+ l2_uu_fwd_next_t next0, next1, next2, next3;
+ vlib_buffer_t *b0, *b1, *b2, *b3;
+ u32 bi0, bi1, bi2, bi3;
+
+ {
+ vlib_buffer_t *b4, *b5, *b6, *b7;
+
+ b4 = vlib_get_buffer (vm, from[4]);
+ b5 = vlib_get_buffer (vm, from[5]);
+ b6 = vlib_get_buffer (vm, from[6]);
+ b7 = vlib_get_buffer (vm, from[7]);
+
+ vlib_prefetch_buffer_header (b4, STORE);
+ vlib_prefetch_buffer_header (b5, STORE);
+ vlib_prefetch_buffer_header (b6, STORE);
+ vlib_prefetch_buffer_header (b7, STORE);
+ }
+ bi0 = to_next[0] = from[0];
+ bi1 = to_next[1] = from[1];
+ bi2 = to_next[2] = from[2];
+ bi3 = to_next[3] = from[3];
+
+ from += 4;
+ to_next += 4;
+ n_left_from -= 4;
+ n_left_to_next -= 4;
+
+ next3 = next2 = next1 = next0 = L2_UU_FWD_NEXT_L2_OUTPUT;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ b1 = vlib_get_buffer (vm, bi1);
+ b2 = vlib_get_buffer (vm, bi2);
+ b3 = vlib_get_buffer (vm, bi3);
+
+ bdc0 = vec_elt_at_index (l2input_main.bd_configs,
+ vnet_buffer (b0)->l2.bd_index);
+ bdc1 = vec_elt_at_index (l2input_main.bd_configs,
+ vnet_buffer (b1)->l2.bd_index);
+ bdc2 = vec_elt_at_index (l2input_main.bd_configs,
+ vnet_buffer (b2)->l2.bd_index);
+ bdc3 = vec_elt_at_index (l2input_main.bd_configs,
+ vnet_buffer (b3)->l2.bd_index);
+
+ ASSERT (~0 != bdc0->uu_fwd_sw_if_index);
+
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = bdc0->uu_fwd_sw_if_index;
+ vnet_buffer (b1)->sw_if_index[VLIB_TX] = bdc1->uu_fwd_sw_if_index;
+ vnet_buffer (b2)->sw_if_index[VLIB_TX] = bdc2->uu_fwd_sw_if_index;
+ vnet_buffer (b3)->sw_if_index[VLIB_TX] = bdc3->uu_fwd_sw_if_index;
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ l2_uu_fwd_trace_t *t;
+
+ t = vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = bdc0->uu_fwd_sw_if_index;
+ }
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b1->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ l2_uu_fwd_trace_t *t;
+
+ t = vlib_add_trace (vm, node, b1, sizeof (*t));
+ t->sw_if_index = bdc1->uu_fwd_sw_if_index;
+ }
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b1->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ l2_uu_fwd_trace_t *t;
+
+ t = vlib_add_trace (vm, node, b2, sizeof (*t));
+ t->sw_if_index = bdc2->uu_fwd_sw_if_index;
+ }
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b1->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ l2_uu_fwd_trace_t *t;
+
+ t = vlib_add_trace (vm, node, b3, sizeof (*t));
+ t->sw_if_index = bdc3->uu_fwd_sw_if_index;
+ }
+ vlib_validate_buffer_enqueue_x4 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, bi2, bi3,
+ next0, next1, next2, next3);
+ }
+
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ const l2_bridge_domain_t *bdc0;
+ l2_uu_fwd_next_t next0;
+ vlib_buffer_t *b0;
+ u32 bi0;
+
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+ next0 = L2_UU_FWD_NEXT_L2_OUTPUT;
+ b0 = vlib_get_buffer (vm, bi0);
+
+ bdc0 = vec_elt_at_index (l2input_main.bd_configs,
+ vnet_buffer (b0)->l2.bd_index);
+ ASSERT (~0 != bdc0->uu_fwd_sw_if_index);
+
+ vnet_buffer (b0)->sw_if_index[VLIB_TX] = bdc0->uu_fwd_sw_if_index;
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE) &&
+ (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ l2_uu_fwd_trace_t *t;
+
+ t = vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = bdc0->uu_fwd_sw_if_index;
+ }
+ vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, next0);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ vlib_node_increment_counter (vm, node->node_index,
+ L2_UU_FWD_ERROR_L2_UU_FWD, frame->n_vectors);
+
+ return frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (l2_uu_fwd_node,static) = {
+ .function = l2_uu_fwd_node_fn,
+ .name = "l2-uu-fwd",
+ .vector_size = sizeof (u32),
+ .format_trace = format_l2_uu_fwd_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(l2_uu_fwd_error_strings),
+ .error_strings = l2_uu_fwd_error_strings,
+
+ .n_next_nodes = L2_UU_FWD_N_NEXT,
+
+ .next_nodes = {
+ [L2_UU_FWD_NEXT_DROP] = "error-drop",
+ [L2_UU_FWD_NEXT_L2_OUTPUT] = "l2-output",
+ },
+};
+
+VLIB_NODE_FUNCTION_MULTIARCH (l2_uu_fwd_node, l2_uu_fwd_node_fn)
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
Code Review / vpp.git / blobdiff