-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
*/
#ifndef __INCLUDE_RTE_METER_H__
* 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)
*
***/
-/** Packet Color Set */
-enum rte_meter_color {
- e_RTE_METER_GREEN = 0, /**< Green */
- e_RTE_METER_YELLOW, /**< Yellow */
- e_RTE_METER_RED, /**< Red */
- e_RTE_METER_COLORS /**< Number of available colors */
+/**
+ * Color
+ */
+enum rte_color {
+ RTE_COLOR_GREEN = 0, /**< Green */
+ RTE_COLOR_YELLOW, /**< Yellow */
+ RTE_COLOR_RED, /**< Red */
+ RTE_COLORS /**< Number of colors */
};
/** srTCM parameters per metered traffic flow. The CIR, CBS and EBS parameters only
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.
+ */
+struct rte_meter_srtcm_profile;
+
+/**
+ * Internal data structure storing the trTCM configuration profile. Typically
+ * shared by multiple trTCM objects.
+ */
+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
+ *
+ * @param p
+ * Pointer to pre-allocated srTCM profile data structure
+ * @param params
+ * srTCM profile parameters
+ * @return
+ * 0 upon success, error code otherwise
+ */
+int
+rte_meter_srtcm_profile_config(struct rte_meter_srtcm_profile *p,
+ struct rte_meter_srtcm_params *params);
+
+/**
+ * trTCM 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_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_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
*
* @param m
* Pointer to pre-allocated srTCM data structure
- * @param params
- * User parameters per srTCM metered traffic flow
+ * @param p
+ * srTCM profile. Needs to be valid.
* @return
* 0 upon success, error code otherwise
*/
int
rte_meter_srtcm_config(struct rte_meter_srtcm *m,
- struct rte_meter_srtcm_params *params);
+ struct rte_meter_srtcm_profile *p);
/**
* trTCM configuration per metered traffic flow
*
* @param m
* Pointer to pre-allocated trTCM data structure
- * @param params
- * User parameters per trTCM metered traffic flow
+ * @param p
+ * trTCM profile. Needs to be valid.
* @return
* 0 upon success, error code otherwise
*/
int
rte_meter_trtcm_config(struct rte_meter_trtcm *m,
- struct rte_meter_trtcm_params *params);
+ 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_meter_trtcm_rfc4115_config(struct rte_meter_trtcm_rfc4115 *m,
+ struct rte_meter_trtcm_rfc4115_profile *p);
/**
* srTCM color blind traffic metering
*
* @param m
* Handle to srTCM instance
+ * @param p
+ * srTCM profile specified at srTCM object creation time
* @param time
* Current CPU time stamp (measured in CPU cycles)
- * @param pkt_length
+ * @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
+static inline enum rte_color
rte_meter_srtcm_color_blind_check(struct rte_meter_srtcm *m,
+ struct rte_meter_srtcm_profile *p,
uint64_t time,
uint32_t pkt_len);
*
* @param m
* Handle to srTCM instance
+ * @param p
+ * srTCM profile specified at srTCM object creation time
* @param time
* Current CPU time stamp (measured in CPU cycles)
- * @param pkt_length
+ * @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
+static inline enum rte_color
rte_meter_srtcm_color_aware_check(struct rte_meter_srtcm *m,
+ struct rte_meter_srtcm_profile *p,
uint64_t time,
- uint32_t pkt_len,
- enum rte_meter_color pkt_color);
+ uint32_t pkt_len,
+ enum rte_color pkt_color);
/**
* trTCM 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_length
+ * @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
+static inline enum rte_color
rte_meter_trtcm_color_blind_check(struct rte_meter_trtcm *m,
+ struct rte_meter_trtcm_profile *p,
uint64_t time,
uint32_t pkt_len);
*
* @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_length
+ * @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
+static inline enum rte_color
rte_meter_trtcm_color_aware_check(struct rte_meter_trtcm *m,
+ struct rte_meter_trtcm_profile *p,
+ uint64_t time,
+ uint32_t pkt_len,
+ enum rte_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_color
+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_color
+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);
+ enum rte_color pkt_color);
/*
* Inline implementation of run-time methods
*
***/
-
+
+struct rte_meter_srtcm_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 each update of C and E token buckets */
+ uint64_t cir_bytes_per_period;
+ /**< Number of bytes to add to C and E token buckets on each update */
+};
+
/* Internal data structure storing the srTCM run-time context per metered traffic flow. */
struct rte_meter_srtcm {
uint64_t time; /* Time of latest update of C and E token buckets */
uint64_t tc; /* Number of bytes currently available in the committed (C) token bucket */
uint64_t te; /* Number of bytes currently available in the excess (E) token bucket */
- 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 and E token buckets */
- uint64_t cir_bytes_per_period; /* Number of bytes to add to C and E token buckets on each update */
};
-/* Internal data structure storing the trTCM run-time context per metered traffic flow. */
+struct rte_meter_trtcm_profile {
+ uint64_t cbs;
+ /**< Upper limit for C token bucket */
+ uint64_t pbs;
+ /**< Upper limit for P 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 pir_period;
+ /**< Number of CPU cycles for one update of P token bucket */
+ uint64_t pir_bytes_per_period;
+ /**< Number of bytes to add to P token bucket on each update */
+};
+
+/**
+ * Internal data structure storing the trTCM run-time context per metered
+ * traffic flow.
+ */
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 */
- uint64_t tc; /* Number of bytes currently available in the committed (C) token bucket */
- uint64_t tp; /* Number of bytes currently available in the peak (P) token bucket */
- uint64_t cbs; /* Upper limit for C token bucket */
- uint64_t pbs; /* Upper limit for P 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 pir_period; /* Number of CPU cycles for one update of P token bucket */
- uint64_t pir_bytes_per_period; /* Number of bytes to add to P token bucket on each update */
+ uint64_t time_tc;
+ /**< Time of latest update of C token bucket */
+ uint64_t time_tp;
+ /**< 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 */
};
-static inline enum rte_meter_color
-rte_meter_srtcm_color_blind_check(struct rte_meter_srtcm *m,
+/**
+ * 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_color
+rte_meter_srtcm_color_blind_check(struct rte_meter_srtcm *m,
+ struct rte_meter_srtcm_profile *p,
uint64_t time,
uint32_t pkt_len)
{
uint64_t time_diff, n_periods, tc, te;
-
+
/* Bucket update */
time_diff = time - m->time;
- n_periods = time_diff / m->cir_period;
- m->time += n_periods * m->cir_period;
-
- tc = m->tc + n_periods * m->cir_bytes_per_period;
- if (tc > m->cbs)
- tc = m->cbs;
-
- te = m->te + n_periods * m->cir_bytes_per_period;
- if (te > m->ebs)
- te = m->ebs;
-
+ n_periods = time_diff / p->cir_period;
+ m->time += n_periods * p->cir_period;
+
+ /* Put the tokens overflowing from tc into te bucket */
+ tc = m->tc + n_periods * p->cir_bytes_per_period;
+ te = m->te;
+ if (tc > p->cbs) {
+ te += (tc - p->cbs);
+ if (te > p->ebs)
+ te = p->ebs;
+ tc = p->cbs;
+ }
+
/* Color logic */
if (tc >= pkt_len) {
m->tc = tc - pkt_len;
m->te = te;
- return e_RTE_METER_GREEN;
+ return RTE_COLOR_GREEN;
}
-
+
if (te >= pkt_len) {
m->tc = tc;
m->te = te - pkt_len;
- return e_RTE_METER_YELLOW;
+ return RTE_COLOR_YELLOW;
}
-
+
m->tc = tc;
m->te = te;
- return e_RTE_METER_RED;
+ return RTE_COLOR_RED;
}
-static inline enum rte_meter_color
+static inline enum rte_color
rte_meter_srtcm_color_aware_check(struct rte_meter_srtcm *m,
+ struct rte_meter_srtcm_profile *p,
uint64_t time,
- uint32_t pkt_len,
- enum rte_meter_color pkt_color)
+ uint32_t pkt_len,
+ enum rte_color pkt_color)
{
uint64_t time_diff, n_periods, tc, te;
-
+
/* Bucket update */
time_diff = time - m->time;
- n_periods = time_diff / m->cir_period;
- m->time += n_periods * m->cir_period;
-
- tc = m->tc + n_periods * m->cir_bytes_per_period;
- if (tc > m->cbs)
- tc = m->cbs;
-
- te = m->te + n_periods * m->cir_bytes_per_period;
- if (te > m->ebs)
- te = m->ebs;
-
+ n_periods = time_diff / p->cir_period;
+ m->time += n_periods * p->cir_period;
+
+ /* Put the tokens overflowing from tc into te bucket */
+ tc = m->tc + n_periods * p->cir_bytes_per_period;
+ te = m->te;
+ if (tc > p->cbs) {
+ te += (tc - p->cbs);
+ if (te > p->ebs)
+ te = p->ebs;
+ tc = p->cbs;
+ }
+
/* Color logic */
- if ((pkt_color == e_RTE_METER_GREEN) && (tc >= pkt_len)) {
+ if ((pkt_color == RTE_COLOR_GREEN) && (tc >= pkt_len)) {
m->tc = tc - pkt_len;
m->te = te;
- return e_RTE_METER_GREEN;
+ return RTE_COLOR_GREEN;
}
-
- if ((pkt_color != e_RTE_METER_RED) && (te >= pkt_len)) {
+
+ if ((pkt_color != RTE_COLOR_RED) && (te >= pkt_len)) {
m->tc = tc;
m->te = te - pkt_len;
- return e_RTE_METER_YELLOW;
+ return RTE_COLOR_YELLOW;
}
-
+
m->tc = tc;
m->te = te;
- return e_RTE_METER_RED;
+ return RTE_COLOR_RED;
}
-static inline enum rte_meter_color
+static inline enum rte_color
rte_meter_trtcm_color_blind_check(struct rte_meter_trtcm *m,
+ struct rte_meter_trtcm_profile *p,
uint64_t time,
uint32_t pkt_len)
{
uint64_t time_diff_tc, time_diff_tp, n_periods_tc, n_periods_tp, tc, tp;
-
+
/* Bucket update */
time_diff_tc = time - m->time_tc;
time_diff_tp = time - m->time_tp;
- n_periods_tc = time_diff_tc / m->cir_period;
- n_periods_tp = time_diff_tp / m->pir_period;
- m->time_tc += n_periods_tc * m->cir_period;
- m->time_tp += n_periods_tp * m->pir_period;
-
- tc = m->tc + n_periods_tc * m->cir_bytes_per_period;
- if (tc > m->cbs)
- tc = m->cbs;
-
- tp = m->tp + n_periods_tp * m->pir_bytes_per_period;
- if (tp > m->pbs)
- tp = m->pbs;
-
+ n_periods_tc = time_diff_tc / p->cir_period;
+ n_periods_tp = time_diff_tp / p->pir_period;
+ m->time_tc += n_periods_tc * p->cir_period;
+ m->time_tp += n_periods_tp * p->pir_period;
+
+ tc = m->tc + n_periods_tc * p->cir_bytes_per_period;
+ if (tc > p->cbs)
+ tc = p->cbs;
+
+ tp = m->tp + n_periods_tp * p->pir_bytes_per_period;
+ if (tp > p->pbs)
+ tp = p->pbs;
+
/* Color logic */
if (tp < pkt_len) {
m->tc = tc;
m->tp = tp;
- return e_RTE_METER_RED;
+ return RTE_COLOR_RED;
}
-
+
if (tc < pkt_len) {
m->tc = tc;
m->tp = tp - pkt_len;
- return e_RTE_METER_YELLOW;
+ return RTE_COLOR_YELLOW;
}
-
+
m->tc = tc - pkt_len;
m->tp = tp - pkt_len;
- return e_RTE_METER_GREEN;
+ return RTE_COLOR_GREEN;
}
-static inline enum rte_meter_color
+static inline enum rte_color
rte_meter_trtcm_color_aware_check(struct rte_meter_trtcm *m,
+ struct rte_meter_trtcm_profile *p,
uint64_t time,
- uint32_t pkt_len,
- enum rte_meter_color pkt_color)
+ uint32_t pkt_len,
+ enum rte_color pkt_color)
{
uint64_t time_diff_tc, time_diff_tp, n_periods_tc, n_periods_tp, tc, tp;
-
+
/* Bucket update */
time_diff_tc = time - m->time_tc;
time_diff_tp = time - m->time_tp;
- n_periods_tc = time_diff_tc / m->cir_period;
- n_periods_tp = time_diff_tp / m->pir_period;
- m->time_tc += n_periods_tc * m->cir_period;
- m->time_tp += n_periods_tp * m->pir_period;
-
- tc = m->tc + n_periods_tc * m->cir_bytes_per_period;
- if (tc > m->cbs)
- tc = m->cbs;
-
- tp = m->tp + n_periods_tp * m->pir_bytes_per_period;
- if (tp > m->pbs)
- tp = m->pbs;
-
+ n_periods_tc = time_diff_tc / p->cir_period;
+ n_periods_tp = time_diff_tp / p->pir_period;
+ m->time_tc += n_periods_tc * p->cir_period;
+ m->time_tp += n_periods_tp * p->pir_period;
+
+ tc = m->tc + n_periods_tc * p->cir_bytes_per_period;
+ if (tc > p->cbs)
+ tc = p->cbs;
+
+ tp = m->tp + n_periods_tp * p->pir_bytes_per_period;
+ if (tp > p->pbs)
+ tp = p->pbs;
+
/* Color logic */
- if ((pkt_color == e_RTE_METER_RED) || (tp < pkt_len)) {
+ if ((pkt_color == RTE_COLOR_RED) || (tp < pkt_len)) {
m->tc = tc;
m->tp = tp;
- return e_RTE_METER_RED;
+ return RTE_COLOR_RED;
}
-
- if ((pkt_color == e_RTE_METER_YELLOW) || (tc < pkt_len)) {
+
+ if ((pkt_color == RTE_COLOR_YELLOW) || (tc < pkt_len)) {
m->tc = tc;
m->tp = tp - pkt_len;
- return e_RTE_METER_YELLOW;
+ return RTE_COLOR_YELLOW;
}
-
+
m->tc = tc - pkt_len;
m->tp = tp - pkt_len;
- return e_RTE_METER_GREEN;
+ return RTE_COLOR_GREEN;
+}
+
+static inline enum rte_color
+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 RTE_COLOR_GREEN;
+ }
+ if (te >= pkt_len) {
+ m->tc = tc;
+ m->te = te - pkt_len;
+ return RTE_COLOR_YELLOW;
+ }
+
+ /* If we end up here the color is RED */
+ m->tc = tc;
+ m->te = te;
+ return RTE_COLOR_RED;
+}
+
+static inline enum rte_color
+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_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 == RTE_COLOR_GREEN) && (tc >= pkt_len)) {
+ m->tc = tc - pkt_len;
+ m->te = te;
+ return RTE_COLOR_GREEN;
+ }
+
+ if ((pkt_color != RTE_COLOR_RED) && (te >= pkt_len)) {
+ m->tc = tc;
+ m->te = te - pkt_len;
+ return RTE_COLOR_YELLOW;
+ }
+
+ /* If we end up here the color is RED */
+ m->tc = tc;
+ m->te = te;
+ return RTE_COLOR_RED;
}
+
#ifdef __cplusplus
}
#endif
git.droids-corp.org / dpdk.git / blobdiff