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-rw-r--r--src/vnet/dpo/classify_dpo.c131
1 files changed, 131 insertions, 0 deletions
diff --git a/src/vnet/dpo/classify_dpo.c b/src/vnet/dpo/classify_dpo.c
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index 00000000000..9e7886c9edd
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+++ b/src/vnet/dpo/classify_dpo.c
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+/*
+ * Copyright (c) 2016 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/ip/ip.h>
+#include <vnet/dpo/classify_dpo.h>
+#include <vnet/mpls/mpls.h>
+
+/*
+ * pool of all MPLS Label DPOs
+ */
+classify_dpo_t *classify_dpo_pool;
+
+static classify_dpo_t *
+classify_dpo_alloc (void)
+{
+ classify_dpo_t *cd;
+
+ pool_get_aligned(classify_dpo_pool, cd, CLIB_CACHE_LINE_BYTES);
+ memset(cd, 0, sizeof(*cd));
+
+ return (cd);
+}
+
+static index_t
+classify_dpo_get_index (classify_dpo_t *cd)
+{
+ return (cd - classify_dpo_pool);
+}
+
+index_t
+classify_dpo_create (dpo_proto_t proto,
+ u32 classify_table_index)
+{
+ classify_dpo_t *cd;
+
+ cd = classify_dpo_alloc();
+ cd->cd_proto = proto;
+ cd->cd_table_index = classify_table_index;
+
+ return (classify_dpo_get_index(cd));
+}
+
+u8*
+format_classify_dpo (u8 *s, va_list *args)
+{
+ index_t index = va_arg (*args, index_t);
+ CLIB_UNUSED(u32 indent) = va_arg (*args, u32);
+ classify_dpo_t *cd;
+
+ cd = classify_dpo_get(index);
+
+ return (format(s, "%U-classify:[%d]:table:%d",
+ format_dpo_proto, cd->cd_proto,
+ index, cd->cd_table_index));
+}
+
+static void
+classify_dpo_lock (dpo_id_t *dpo)
+{
+ classify_dpo_t *cd;
+
+ cd = classify_dpo_get(dpo->dpoi_index);
+
+ cd->cd_locks++;
+}
+
+static void
+classify_dpo_unlock (dpo_id_t *dpo)
+{
+ classify_dpo_t *cd;
+
+ cd = classify_dpo_get(dpo->dpoi_index);
+
+ cd->cd_locks--;
+
+ if (0 == cd->cd_locks)
+ {
+ pool_put(classify_dpo_pool, cd);
+ }
+}
+
+static void
+classify_dpo_mem_show (void)
+{
+ fib_show_memory_usage("Classify",
+ pool_elts(classify_dpo_pool),
+ pool_len(classify_dpo_pool),
+ sizeof(classify_dpo_t));
+}
+
+const static dpo_vft_t cd_vft = {
+ .dv_lock = classify_dpo_lock,
+ .dv_unlock = classify_dpo_unlock,
+ .dv_format = format_classify_dpo,
+ .dv_mem_show = classify_dpo_mem_show,
+};
+
+const static char* const classify_ip4_nodes[] =
+{
+ "ip4-classify",
+ NULL,
+};
+const static char* const classify_ip6_nodes[] =
+{
+ "ip6-classify",
+ NULL,
+};
+const static char* const * const classify_nodes[DPO_PROTO_NUM] =
+{
+ [DPO_PROTO_IP4] = classify_ip4_nodes,
+ [DPO_PROTO_IP6] = classify_ip6_nodes,
+ [DPO_PROTO_MPLS] = NULL,
+};
+
+void
+classify_dpo_module_init (void)
+{
+ dpo_register(DPO_CLASSIFY, &cd_vft, classify_nodes);
+}