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-rw-r--r--src/plugins/unittest/policer_test.c71
1 files changed, 71 insertions, 0 deletions
diff --git a/src/plugins/unittest/policer_test.c b/src/plugins/unittest/policer_test.c
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+++ b/src/plugins/unittest/policer_test.c
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+/*
+ * Copyright (c) 2021 Graphiant, Inc.
+ * 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/policer/policer.h>
+
+#define PKT_LEN 500
+
+static clib_error_t *
+policer_test (vlib_main_t *vm, unformat_input_t *input,
+ vlib_cli_command_t *cmd_arg)
+{
+ int policer_index, i;
+ uint rate_kbps, burst, num_pkts;
+ double total_bytes, cpu_ticks_per_pkt, time = 0;
+ double cpu_speed, cpu_ticks_per_byte;
+ policer_result_e result, input_colour = POLICE_CONFORM;
+ uint64_t policer_time;
+
+ policer_read_response_type_st *pol;
+ vnet_policer_main_t *pm = &vnet_policer_main;
+
+ unformat (input, "index %d", &policer_index); /* policer to use */
+ unformat (input, "rate %u", &rate_kbps); /* rate to send at in kbps */
+ unformat (input, "burst %u", &burst); /* burst to send in ms */
+ unformat (input, "colour %u", &input_colour); /* input colour if aware */
+
+ total_bytes = (rate_kbps * burst) / 8;
+ num_pkts = total_bytes / PKT_LEN;
+
+ cpu_speed = (double) os_cpu_clock_frequency ();
+ cpu_ticks_per_byte = cpu_speed / (rate_kbps * 125);
+ cpu_ticks_per_pkt = cpu_ticks_per_byte * PKT_LEN;
+
+ pol = &pm->policers[policer_index];
+
+ for (i = 0; i < num_pkts; i++)
+ {
+ time += cpu_ticks_per_pkt;
+ policer_time = ((uint64_t) time) >> POLICER_TICKS_PER_PERIOD_SHIFT;
+ result = vnet_police_packet (pol, PKT_LEN, input_colour, policer_time);
+ vlib_increment_combined_counter (&policer_counters[result], 0,
+ policer_index, 1, PKT_LEN);
+ }
+
+ return NULL;
+}
+
+VLIB_CLI_COMMAND (test_policer_command, static) = {
+ .path = "test policing",
+ .short_help = "policer unit test helper - DO NOT RUN ON A LIVE SYSTEM",
+ .function = policer_test,
+};
+
+clib_error_t *
+policer_test_init (vlib_main_t *vm)
+{
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (policer_test_init);