1 files changed, 162 insertions, 0 deletions
diff --git a/src/seastar/dpdk/lib/librte_meter/rte_meter.c b/src/seastar/dpdk/lib/librte_meter/rte_meter.c
new file mode 100644
index 000000000..45679444e
--- /dev/null
+++ b/src/seastar/dpdk/lib/librte_meter/rte_meter.c
@@ -0,0 +1,162 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation
+ */
+
+#include <inttypes.h>
+#include <stdio.h>
+#include <math.h>
+
+#include <rte_common.h>
+#include <rte_log.h>
+#include <rte_cycles.h>
+
+#include "rte_meter.h"
+
+#ifndef RTE_METER_TB_PERIOD_MIN
+#define RTE_METER_TB_PERIOD_MIN      100
+#endif
+
+static void
+rte_meter_get_tb_params(uint64_t hz, uint64_t rate, uint64_t *tb_period, uint64_t *tb_bytes_per_period)
+{
+	double period;
+
+	if (rate == 0) {
+		*tb_bytes_per_period = 0;
+		*tb_period = RTE_METER_TB_PERIOD_MIN;
+		return;
+	}
+
+	period = ((double) hz) / ((double) rate);
+
+	if (period >= RTE_METER_TB_PERIOD_MIN) {
+		*tb_bytes_per_period = 1;
+		*tb_period = (uint64_t) period;
+	} else {
+		*tb_bytes_per_period = (uint64_t) ceil(RTE_METER_TB_PERIOD_MIN / period);
+		*tb_period = (hz * (*tb_bytes_per_period)) / rate;
+	}
+}
+
+int
+rte_meter_srtcm_profile_config(struct rte_meter_srtcm_profile *p,
+	struct rte_meter_srtcm_params *params)
+{
+	uint64_t hz = rte_get_tsc_hz();
+
+	/* Check input parameters */
+	if ((p == NULL) ||
+		(params == NULL) ||
+		(params->cir == 0) ||
+		((params->cbs == 0) && (params->ebs == 0)))
+		return -EINVAL;
+
+	/* Initialize srTCM 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);
+
+	return 0;
+}
+
+int
+rte_meter_srtcm_config(struct rte_meter_srtcm *m,
+	struct rte_meter_srtcm_profile *p)
+{
+	/* Check input parameters */
+	if ((m == NULL) || (p == NULL))
+		return -EINVAL;
+
+	/* Initialize srTCM run-time structure */
+	m->time = rte_get_tsc_cycles();
+	m->tc = p->cbs;
+	m->te = p->ebs;
+
+	return 0;
+}
+
+int
+rte_meter_trtcm_profile_config(struct rte_meter_trtcm_profile *p,
+	struct rte_meter_trtcm_params *params)
+{
+	uint64_t hz = rte_get_tsc_hz();
+
+	/* Check input parameters */
+	if ((p == NULL) ||
+		(params == NULL) ||
+		(params->cir == 0) ||
+		(params->pir == 0) ||
+		(params->pir < params->cir) ||
+		(params->cbs == 0) ||
+		(params->pbs == 0))
+		return -EINVAL;
+
+	/* Initialize trTCM run-time structure */
+	p->cbs = params->cbs;
+	p->pbs = params->pbs;
+	rte_meter_get_tb_params(hz, params->cir, &p->cir_period,
+		&p->cir_bytes_per_period);
+	rte_meter_get_tb_params(hz, params->pir, &p->pir_period,
+		&p->pir_bytes_per_period);
+
+	return 0;
+}
+
+int
+rte_meter_trtcm_config(struct rte_meter_trtcm *m,
+	struct rte_meter_trtcm_profile *p)
+{
+	/* Check input parameters */
+	if ((m == NULL) || (p == NULL))
+		return -EINVAL;
+
+	/* Initialize trTCM run-time structure */
+	m->time_tc = m->time_tp = rte_get_tsc_cycles();
+	m->tc = p->cbs;
+	m->tp = p->pbs;
+
+	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;
+}