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meter: support RFC4115 trTCM

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This patch adds support for RFC4115 trTCM meters.

Signed-off-by: Eelco Chaudron <echaudro@redhat.com>
Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
This commit is contained in:
Eelco Chaudron 2019-01-04 13:59:42 +00:00 committed by Thomas Monjalon
parent 9d1d6a7c77
commit 655796d2b5
4 changed files with 496 additions and 2 deletions
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42
lib/librte_meter/rte_meter.c
View File

@ -110,3 +110,45 @@ rte_meter_trtcm_config(struct rte_meter_trtcm *m,
return 0;
}
int __rte_experimental
rte_meter_trtcm_rfc4115_profile_config(
struct rte_meter_trtcm_rfc4115_profile *p,
struct rte_meter_trtcm_rfc4115_params *params)
{
uint64_t hz = rte_get_tsc_hz();
/* Check input parameters */
if ((p == NULL) ||
(params == NULL) ||
(params->cir != 0 && params->cbs == 0) ||
(params->eir != 0 && params->ebs == 0))
return -EINVAL;
/* Initialize trTCM run-time structure */
p->cbs = params->cbs;
p->ebs = params->ebs;
rte_meter_get_tb_params(hz, params->cir, &p->cir_period,
&p->cir_bytes_per_period);
rte_meter_get_tb_params(hz, params->eir, &p->eir_period,
&p->eir_bytes_per_period);
return 0;
}
int __rte_experimental
rte_meter_trtcm_rfc4115_config(
struct rte_meter_trtcm_rfc4115 *m,
struct rte_meter_trtcm_rfc4115_profile *p)
{
/* Check input parameters */
if ((m == NULL) || (p == NULL))
return -EINVAL;
/* Initialize trTCM run-time structure */
m->time_tc = m->time_te = rte_get_tsc_cycles();
m->tc = p->cbs;
m->te = p->ebs;
return 0;
}

235
lib/librte_meter/rte_meter.h
View File

@ -1,3 +1,4 @@
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(c) 2010-2014 Intel Corporation
*/
@ -16,11 +17,14 @@ extern "C" {
* Traffic metering algorithms:
* 1. Single Rate Three Color Marker (srTCM): defined by IETF RFC 2697
* 2. Two Rate Three Color Marker (trTCM): defined by IETF RFC 2698
* 3. Two Rate Three Color Marker (trTCM): defined by IETF RFC 4115
*
***/
#include <stdint.h>
#include "rte_compat.h"
/*
* Application Programmer's Interface (API)
*
@ -58,10 +62,21 @@ be greater than or equal to CIR. Both CBS or EBS have to be greater than zero. *
struct rte_meter_trtcm_params {
uint64_t cir; /**< Committed Information Rate (CIR). Measured in bytes per second. */
uint64_t pir; /**< Peak Information Rate (PIR). Measured in bytes per second. */
uint64_t cbs; /**< Committed Burst Size (CBS). Measured in byes. */
uint64_t cbs; /**< Committed Burst Size (CBS). Measured in bytes. */
uint64_t pbs; /**< Peak Burst Size (PBS). Measured in bytes. */
};
/** trTCM parameters per metered traffic flow. The CIR, EIR, CBS and EBS
parameters only count bytes of IP packets and do not include link specific
headers. The CBS and EBS need to be greater than zero if CIR and EIR are
none-zero respectively.*/
struct rte_meter_trtcm_rfc4115_params {
uint64_t cir; /**< Committed Information Rate (CIR). Measured in bytes per second. */
uint64_t eir; /**< Excess Information Rate (EIR). Measured in bytes per second. */
uint64_t cbs; /**< Committed Burst Size (CBS). Measured in bytes. */
uint64_t ebs; /**< Excess Burst Size (EBS). Measured in bytes. */
};
/**
* Internal data structure storing the srTCM configuration profile. Typically
* shared by multiple srTCM objects.
@ -74,12 +89,24 @@ struct rte_meter_srtcm_profile;
*/
struct rte_meter_trtcm_profile;
/**
* Internal data structure storing the trTCM RFC4115 configuration profile.
* Typically shared by multiple trTCM objects.
*/
struct rte_meter_trtcm_rfc4115_profile;
/** Internal data structure storing the srTCM run-time context per metered traffic flow. */
struct rte_meter_srtcm;
/** Internal data structure storing the trTCM run-time context per metered traffic flow. */
struct rte_meter_trtcm;
/**
* Internal data structure storing the trTCM RFC4115 run-time context per
* metered traffic flow.
*/
struct rte_meter_trtcm_rfc4115;
/**
* srTCM profile configuration
*
@ -107,6 +134,23 @@ rte_meter_srtcm_profile_config(struct rte_meter_srtcm_profile *p,
int
rte_meter_trtcm_profile_config(struct rte_meter_trtcm_profile *p,
struct rte_meter_trtcm_params *params);
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
*
* trTCM RFC 4115 profile configuration
*
* @param p
* Pointer to pre-allocated trTCM profile data structure
* @param params
* trTCM profile parameters
* @return
* 0 upon success, error code otherwise
*/
int __rte_experimental
rte_meter_trtcm_rfc4115_profile_config(
struct rte_meter_trtcm_rfc4115_profile *p,
struct rte_meter_trtcm_rfc4115_params *params);
/**
* srTCM configuration per metered traffic flow
@ -136,6 +180,23 @@ int
rte_meter_trtcm_config(struct rte_meter_trtcm *m,
struct rte_meter_trtcm_profile *p);
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
*
* trTCM RFC 4115 configuration per metered traffic flow
*
* @param m
* Pointer to pre-allocated trTCM data structure
* @param p
* trTCM profile. Needs to be valid.
* @return
* 0 upon success, error code otherwise
*/
int __rte_experimental
rte_meter_trtcm_rfc4115_config(struct rte_meter_trtcm_rfc4115 *m,
struct rte_meter_trtcm_rfc4115_profile *p);
/**
* srTCM color blind traffic metering
*
@ -222,6 +283,57 @@ rte_meter_trtcm_color_aware_check(struct rte_meter_trtcm *m,
uint32_t pkt_len,
enum rte_meter_color pkt_color);
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
*
* trTCM RFC4115 color blind traffic metering
*
* @param m
* Handle to trTCM instance
* @param p
* trTCM profile specified at trTCM object creation time
* @param time
* Current CPU time stamp (measured in CPU cycles)
* @param pkt_len
* Length of the current IP packet (measured in bytes)
* @return
* Color assigned to the current IP packet
*/
static inline enum rte_meter_color __rte_experimental
rte_meter_trtcm_rfc4115_color_blind_check(
struct rte_meter_trtcm_rfc4115 *m,
struct rte_meter_trtcm_rfc4115_profile *p,
uint64_t time,
uint32_t pkt_len);
/**
* @warning
* @b EXPERIMENTAL: this API may change without prior notice
*
* trTCM RFC4115 color aware traffic metering
*
* @param m
* Handle to trTCM instance
* @param p
* trTCM profile specified at trTCM object creation time
* @param time
* Current CPU time stamp (measured in CPU cycles)
* @param pkt_len
* Length of the current IP packet (measured in bytes)
* @param pkt_color
* Input color of the current IP packet
* @return
* Color assigned to the current IP packet
*/
static inline enum rte_meter_color __rte_experimental
rte_meter_trtcm_rfc4115_color_aware_check(
struct rte_meter_trtcm_rfc4115 *m,
struct rte_meter_trtcm_rfc4115_profile *p,
uint64_t time,
uint32_t pkt_len,
enum rte_meter_color pkt_color);
/*
* Inline implementation of run-time methods
*
@ -268,13 +380,43 @@ struct rte_meter_trtcm {
uint64_t time_tc;
/**< Time of latest update of C token bucket */
uint64_t time_tp;
/**< Time of latest update of E token bucket */
/**< Time of latest update of P token bucket */
uint64_t tc;
/**< Number of bytes currently available in committed(C) token bucket */
uint64_t tp;
/**< Number of bytes currently available in the peak(P) token bucket */
};
struct rte_meter_trtcm_rfc4115_profile {
uint64_t cbs;
/**< Upper limit for C token bucket */
uint64_t ebs;
/**< Upper limit for E token bucket */
uint64_t cir_period;
/**< Number of CPU cycles for one update of C token bucket */
uint64_t cir_bytes_per_period;
/**< Number of bytes to add to C token bucket on each update */
uint64_t eir_period;
/**< Number of CPU cycles for one update of E token bucket */
uint64_t eir_bytes_per_period;
/**< Number of bytes to add to E token bucket on each update */
};
/**
* Internal data structure storing the trTCM RFC4115 run-time context per
* metered traffic flow.
*/
struct rte_meter_trtcm_rfc4115 {
uint64_t time_tc;
/**< Time of latest update of C token bucket */
uint64_t time_te;
/**< Time of latest update of E token bucket */
uint64_t tc;
/**< Number of bytes currently available in committed(C) token bucket */
uint64_t te;
/**< Number of bytes currently available in the excess(E) token bucket */
};
static inline enum rte_meter_color
rte_meter_srtcm_color_blind_check(struct rte_meter_srtcm *m,
struct rte_meter_srtcm_profile *p,
@ -443,6 +585,95 @@ rte_meter_trtcm_color_aware_check(struct rte_meter_trtcm *m,
return e_RTE_METER_GREEN;
}
static inline enum rte_meter_color __rte_experimental
rte_meter_trtcm_rfc4115_color_blind_check(
struct rte_meter_trtcm_rfc4115 *m,
struct rte_meter_trtcm_rfc4115_profile *p,
uint64_t time,
uint32_t pkt_len)
{
uint64_t time_diff_tc, time_diff_te, n_periods_tc, n_periods_te, tc, te;
/* Bucket update */
time_diff_tc = time - m->time_tc;
time_diff_te = time - m->time_te;
n_periods_tc = time_diff_tc / p->cir_period;
n_periods_te = time_diff_te / p->eir_period;
m->time_tc += n_periods_tc * p->cir_period;
m->time_te += n_periods_te * p->eir_period;
tc = m->tc + n_periods_tc * p->cir_bytes_per_period;
if (tc > p->cbs)
tc = p->cbs;
te = m->te + n_periods_te * p->eir_bytes_per_period;
if (te > p->ebs)
te = p->ebs;
/* Color logic */
if (tc >= pkt_len) {
m->tc = tc - pkt_len;
m->te = te;
return e_RTE_METER_GREEN;
}
if (te >= pkt_len) {
m->tc = tc;
m->te = te - pkt_len;
return e_RTE_METER_YELLOW;
}
/* If we end up here the color is RED */
m->tc = tc;
m->te = te;
return e_RTE_METER_RED;
}
static inline enum rte_meter_color __rte_experimental
rte_meter_trtcm_rfc4115_color_aware_check(
struct rte_meter_trtcm_rfc4115 *m,
struct rte_meter_trtcm_rfc4115_profile *p,
uint64_t time,
uint32_t pkt_len,
enum rte_meter_color pkt_color)
{
uint64_t time_diff_tc, time_diff_te, n_periods_tc, n_periods_te, tc, te;
/* Bucket update */
time_diff_tc = time - m->time_tc;
time_diff_te = time - m->time_te;
n_periods_tc = time_diff_tc / p->cir_period;
n_periods_te = time_diff_te / p->eir_period;
m->time_tc += n_periods_tc * p->cir_period;
m->time_te += n_periods_te * p->eir_period;
tc = m->tc + n_periods_tc * p->cir_bytes_per_period;
if (tc > p->cbs)
tc = p->cbs;
te = m->te + n_periods_te * p->eir_bytes_per_period;
if (te > p->ebs)
te = p->ebs;
/* Color logic */
if ((pkt_color == e_RTE_METER_GREEN) && (tc >= pkt_len)) {
m->tc = tc - pkt_len;
m->te = te;
return e_RTE_METER_GREEN;
}
if ((pkt_color != e_RTE_METER_RED) && (te >= pkt_len)) {
m->tc = tc;
m->te = te - pkt_len;
return e_RTE_METER_YELLOW;
}
/* If we end up here the color is RED */
m->tc = tc;
m->te = te;
return e_RTE_METER_RED;
}
#ifdef __cplusplus
}
#endif

9
lib/librte_meter/rte_meter_version.map
View File

@ -17,3 +17,12 @@ DPDK_18.08 {
rte_meter_srtcm_profile_config;
rte_meter_trtcm_profile_config;
};
EXPERIMENTAL {
global:
rte_meter_trtcm_rfc4115_color_aware_check;
rte_meter_trtcm_rfc4115_color_blind_check;
rte_meter_trtcm_rfc4115_config;
rte_meter_trtcm_rfc4115_profile_config;
};

212
test/test/test_meter.c
View File

@ -32,8 +32,10 @@
#define TM_TEST_TRTCM_CIR_DF 46000000
#define TM_TEST_TRTCM_PIR_DF 69000000
#define TM_TEST_TRTCM_EIR_DF 69000000
#define TM_TEST_TRTCM_CBS_DF 2048
#define TM_TEST_TRTCM_PBS_DF 4096
#define TM_TEST_TRTCM_EBS_DF 4096
static struct rte_meter_srtcm_params sparams =
{.cir = TM_TEST_SRTCM_CIR_DF,
@ -46,6 +48,12 @@ static struct rte_meter_trtcm_params tparams=
.cbs = TM_TEST_TRTCM_CBS_DF,
.pbs = TM_TEST_TRTCM_PBS_DF,};
static struct rte_meter_trtcm_rfc4115_params rfc4115params =
{.cir = TM_TEST_TRTCM_CIR_DF,
.eir = TM_TEST_TRTCM_EIR_DF,
.cbs = TM_TEST_TRTCM_CBS_DF,
.ebs = TM_TEST_TRTCM_EBS_DF,};
/**
* functional test for rte_meter_srtcm_config
*/
@ -148,6 +156,45 @@ tm_test_trtcm_config(void)
return 0;
}
/**
* functional test for rte_meter_trtcm_rfc4115_config
*/
static inline int
tm_test_trtcm_rfc4115_config(void)
{
struct rte_meter_trtcm_rfc4115_profile tp;
struct rte_meter_trtcm_rfc4115_params rfc4115params1;
#define TRTCM_RFC4115_CFG_MSG "trtcm_rfc4115_config"
/* invalid parameter test */
if (rte_meter_trtcm_rfc4115_profile_config(NULL, NULL) == 0)
melog(TRTCM_RFC4115_CFG_MSG);
if (rte_meter_trtcm_rfc4115_profile_config(&tp, NULL) == 0)
melog(TRTCM_RFC4115_CFG_MSG);
if (rte_meter_trtcm_rfc4115_profile_config(NULL, &rfc4115params) == 0)
melog(TRTCM_RFC4115_CFG_MSG);
/*
* cbs and pbs should be none-zero if cir and eir are none-zero
* respectively
*/
rfc4115params1 = rfc4115params;
rfc4115params1.cbs = 0;
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params1) == 0)
melog(TRTCM_RFC4115_CFG_MSG);
rfc4115params1 = rfc4115params;
rfc4115params1.ebs = 0;
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params1) == 0)
melog(TRTCM_RFC4115_CFG_MSG);
/* usual parameter, should be successful */
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params) != 0)
melog(TRTCM_RFC4115_CFG_MSG);
return 0;
}
/**
* functional test for rte_meter_srtcm_color_blind_check
*/
@ -265,6 +312,65 @@ tm_test_trtcm_color_blind_check(void)
return 0;
}
/**
* functional test for rte_meter_trtcm_rfc4115_color_blind_check
*/
static inline int
tm_test_trtcm_rfc4115_color_blind_check(void)
{
#define TRTCM_RFC4115_BLIND_CHECK_MSG "trtcm_rfc4115_blind_check"
uint64_t time;
struct rte_meter_trtcm_rfc4115_profile tp;
struct rte_meter_trtcm_rfc4115 tm;
uint64_t hz = rte_get_tsc_hz();
/* Test green */
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params) != 0)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG);
if (rte_meter_trtcm_rfc4115_config(&tm, &tp) != 0)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG);
time = rte_get_tsc_cycles() + hz;
if (rte_meter_trtcm_rfc4115_color_blind_check(
&tm, &tp, time, TM_TEST_TRTCM_CBS_DF - 1)
!= e_RTE_METER_GREEN)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG" GREEN");
/* Test yellow */
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params) != 0)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG);
if (rte_meter_trtcm_rfc4115_config(&tm, &tp) != 0)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG);
time = rte_get_tsc_cycles() + hz;
if (rte_meter_trtcm_rfc4115_color_blind_check(
&tm, &tp, time, TM_TEST_TRTCM_CBS_DF + 1)
!= e_RTE_METER_YELLOW)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG" YELLOW");
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params) != 0)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG);
if (rte_meter_trtcm_rfc4115_config(&tm, &tp) != 0)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG);
time = rte_get_tsc_cycles() + hz;
if (rte_meter_trtcm_rfc4115_color_blind_check(
&tm, &tp, time, TM_TEST_TRTCM_EBS_DF - 1)
!= e_RTE_METER_YELLOW)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG" YELLOW");
/* Test red */
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params) != 0)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG);
if (rte_meter_trtcm_rfc4115_config(&tm, &tp) != 0)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG);
time = rte_get_tsc_cycles() + hz;
if (rte_meter_trtcm_rfc4115_color_blind_check(
&tm, &tp, time, TM_TEST_TRTCM_EBS_DF + 1)
!= e_RTE_METER_RED)
melog(TRTCM_RFC4115_BLIND_CHECK_MSG" RED");
return 0;
}
/**
* @in[4] : the flags packets carries.
@ -473,6 +579,103 @@ tm_test_trtcm_color_aware_check(void)
return 0;
}
/**
* @in[4] : the flags packets carries.
* @in[4] : the flags function expect to return.
* It will do blind check at the time of 1 second from beginning.
* At the time, it will use packets length of cbs -1, cbs + 1,
* ebs -1 and ebs +1 with flag in[0], in[1], in[2] and in[3] to do
* aware check, expect flag out[0], out[1], out[2] and out[3]
*/
static inline int
tm_test_trtcm_rfc4115_aware_check
(enum rte_meter_color in[4], enum rte_meter_color out[4])
{
#define TRTCM_RFC4115_AWARE_CHECK_MSG "trtcm_rfc4115_aware_check"
struct rte_meter_trtcm_rfc4115_profile tp;
struct rte_meter_trtcm_rfc4115 tm;
uint64_t time;
uint64_t hz = rte_get_tsc_hz();
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params) != 0)
melog(TRTCM_AWARE_CHECK_MSG);
if (rte_meter_trtcm_rfc4115_config(&tm, &tp) != 0)
melog(TRTCM_RFC4115_AWARE_CHECK_MSG);
time = rte_get_tsc_cycles() + hz;
if (rte_meter_trtcm_rfc4115_color_aware_check(
&tm, &tp, time, TM_TEST_TRTCM_CBS_DF - 1, in[0]) != out[0])
melog(TRTCM_RFC4115_AWARE_CHECK_MSG" %u:%u", in[0], out[0]);
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params) != 0)
melog(TRTCM_RFC4115_AWARE_CHECK_MSG);
if (rte_meter_trtcm_rfc4115_config(&tm, &tp) != 0)
melog(TRTCM_RFC4115_AWARE_CHECK_MSG);
time = rte_get_tsc_cycles() + hz;
if (rte_meter_trtcm_rfc4115_color_aware_check(
&tm, &tp, time, TM_TEST_TRTCM_CBS_DF + 1, in[1]) != out[1])
melog(TRTCM_RFC4115_AWARE_CHECK_MSG" %u:%u", in[1], out[1]);
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params) != 0)
melog(TRTCM_RFC4115_AWARE_CHECK_MSG);
if (rte_meter_trtcm_rfc4115_config(&tm, &tp) != 0)
melog(TRTCM_RFC4115_AWARE_CHECK_MSG);
time = rte_get_tsc_cycles() + hz;
if (rte_meter_trtcm_rfc4115_color_aware_check(
&tm, &tp, time, TM_TEST_TRTCM_EBS_DF - 1, in[2]) != out[2])
melog(TRTCM_RFC4115_AWARE_CHECK_MSG" %u:%u", in[2], out[2]);
if (rte_meter_trtcm_rfc4115_profile_config(&tp, &rfc4115params) != 0)
melog(TRTCM_RFC4115_AWARE_CHECK_MSG);
if (rte_meter_trtcm_rfc4115_config(&tm, &tp) != 0)
melog(TRTCM_RFC4115_AWARE_CHECK_MSG);
time = rte_get_tsc_cycles() + hz;
if (rte_meter_trtcm_rfc4115_color_aware_check(
&tm, &tp, time, TM_TEST_TRTCM_EBS_DF + 1, in[3]) != out[3])
melog(TRTCM_RFC4115_AWARE_CHECK_MSG" %u:%u", in[3], out[3]);
return 0;
}
/**
* functional test for rte_meter_trtcm_rfc4115_color_aware_check
*/
static inline int
tm_test_trtcm_rfc4115_color_aware_check(void)
{
enum rte_meter_color in[4], out[4];
/**
* test 4 points that will produce green, yellow, yellow, red flag
* if using blind check
*/
/* previouly have a green, test points should keep unchanged */
in[0] = in[1] = in[2] = in[3] = e_RTE_METER_GREEN;
out[0] = e_RTE_METER_GREEN;
out[1] = e_RTE_METER_YELLOW;
out[2] = e_RTE_METER_YELLOW;
out[3] = e_RTE_METER_RED;
if (tm_test_trtcm_rfc4115_aware_check(in, out) != 0)
return -1;
in[0] = in[1] = in[2] = in[3] = e_RTE_METER_YELLOW;
out[0] = e_RTE_METER_YELLOW;
out[1] = e_RTE_METER_YELLOW;
out[2] = e_RTE_METER_YELLOW;
out[3] = e_RTE_METER_RED;
if (tm_test_trtcm_rfc4115_aware_check(in, out) != 0)
return -1;
in[0] = in[1] = in[2] = in[3] = e_RTE_METER_RED;
out[0] = e_RTE_METER_RED;
out[1] = e_RTE_METER_RED;
out[2] = e_RTE_METER_RED;
out[3] = e_RTE_METER_RED;
if (tm_test_trtcm_rfc4115_aware_check(in, out) != 0)
return -1;
return 0;
}
/**
* test main entrance for library meter
*/
@ -485,18 +688,27 @@ test_meter(void)
if (tm_test_trtcm_config() != 0)
return -1;
if (tm_test_trtcm_rfc4115_config() != 0)
return -1;
if (tm_test_srtcm_color_blind_check() != 0)
return -1;
if (tm_test_trtcm_color_blind_check() != 0)
return -1;
if (tm_test_trtcm_rfc4115_color_blind_check() != 0)
return -1;
if (tm_test_srtcm_color_aware_check() != 0)
return -1;
if (tm_test_trtcm_color_aware_check() != 0)
return -1;
if (tm_test_trtcm_rfc4115_color_aware_check() != 0)
return -1;
return 0;
}