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numam-dpdk/drivers/net/mlx5/mlx5_flow_meter.c
Shun Hao bf62fb7693 net/mlx5: support yellow meter action in hierarchy 
This patch adds the support of meter action for yellow meter policy
flow, so can use meter action for both green and yellow policy flows
in meter hierarchy.
Currently must use the same meter within one meter policy. Packets
passing green/yellow policy flow will have previous meter color of
green/yellow in subsequent meter.

Signed-off-by: Shun Hao <shunh@nvidia.com>
Acked-by: Matan Azrad <matan@nvidia.com>
2022-06-01 09:49:36 +02:00

2265 lines
65 KiB
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// SPDX-License-Identifier: BSD-3-Clause
/*
* Copyright 2018 Mellanox Technologies, Ltd
*/
#include <math.h>
#include <rte_tailq.h>
#include <rte_malloc.h>
#include <rte_mtr.h>
#include <rte_mtr_driver.h>
#include <mlx5_devx_cmds.h>
#include <mlx5_malloc.h>
#include "mlx5.h"
#include "mlx5_flow.h"
static int mlx5_flow_meter_disable(struct rte_eth_dev *dev,
uint32_t meter_id, struct rte_mtr_error *error);
/**
* Create the meter action.
*
* @param priv
* Pointer to mlx5_priv.
* @param[in] fm
* Pointer to flow meter to be converted.
*
* @return
* Pointer to the meter action on success, NULL otherwise.
*/
static void *
mlx5_flow_meter_action_create(struct mlx5_priv *priv,
struct mlx5_flow_meter_info *fm)
{
#ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER
struct mlx5dv_dr_flow_meter_attr mtr_init;
uint32_t fmp[MLX5_ST_SZ_DW(flow_meter_parameters)];
struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm =
&fm->profile->srtcm_prm;
uint32_t cbs_cir = rte_be_to_cpu_32(srtcm->cbs_cir);
uint32_t ebs_eir = rte_be_to_cpu_32(srtcm->ebs_eir);
uint32_t val;
enum mlx5_meter_domain domain =
fm->transfer ? MLX5_MTR_DOMAIN_TRANSFER :
fm->egress ? MLX5_MTR_DOMAIN_EGRESS :
MLX5_MTR_DOMAIN_INGRESS;
struct mlx5_flow_meter_def_policy *def_policy =
priv->sh->mtrmng->def_policy[domain];
memset(fmp, 0, MLX5_ST_SZ_BYTES(flow_meter_parameters));
MLX5_SET(flow_meter_parameters, fmp, valid, 1);
MLX5_SET(flow_meter_parameters, fmp, bucket_overflow, 1);
MLX5_SET(flow_meter_parameters, fmp,
start_color, MLX5_FLOW_COLOR_GREEN);
MLX5_SET(flow_meter_parameters, fmp, both_buckets_on_green, 0);
val = (cbs_cir >> ASO_DSEG_CBS_EXP_OFFSET) & ASO_DSEG_EXP_MASK;
MLX5_SET(flow_meter_parameters, fmp, cbs_exponent, val);
val = (cbs_cir >> ASO_DSEG_CBS_MAN_OFFSET) & ASO_DSEG_MAN_MASK;
MLX5_SET(flow_meter_parameters, fmp, cbs_mantissa, val);
val = (cbs_cir >> ASO_DSEG_XIR_EXP_OFFSET) & ASO_DSEG_EXP_MASK;
MLX5_SET(flow_meter_parameters, fmp, cir_exponent, val);
val = (cbs_cir & ASO_DSEG_MAN_MASK);
MLX5_SET(flow_meter_parameters, fmp, cir_mantissa, val);
val = (ebs_eir >> ASO_DSEG_EBS_EXP_OFFSET) & ASO_DSEG_EXP_MASK;
MLX5_SET(flow_meter_parameters, fmp, ebs_exponent, val);
val = (ebs_eir >> ASO_DSEG_EBS_MAN_OFFSET) & ASO_DSEG_MAN_MASK;
MLX5_SET(flow_meter_parameters, fmp, ebs_mantissa, val);
mtr_init.next_table = def_policy->sub_policy.tbl_rsc->obj;
mtr_init.reg_c_index = priv->mtr_color_reg - REG_C_0;
mtr_init.flow_meter_parameter = fmp;
mtr_init.flow_meter_parameter_sz =
MLX5_ST_SZ_BYTES(flow_meter_parameters);
mtr_init.active = fm->active_state;
return mlx5_glue->dv_create_flow_action_meter(&mtr_init);
#else
(void)priv;
(void)fm;
return NULL;
#endif
}
/**
* Find meter profile by id.
*
* @param priv
* Pointer to mlx5_priv.
* @param meter_profile_id
* Meter profile id.
*
* @return
* Pointer to the profile found on success, NULL otherwise.
*/
static struct mlx5_flow_meter_profile *
mlx5_flow_meter_profile_find(struct mlx5_priv *priv, uint32_t meter_profile_id)
{
struct mlx5_flow_meter_profile *fmp;
union mlx5_l3t_data data;
int32_t ret;
if (mlx5_l3t_get_entry(priv->mtr_profile_tbl,
meter_profile_id, &data) || !data.ptr)
return NULL;
fmp = data.ptr;
/* Remove reference taken by the mlx5_l3t_get_entry. */
ret = mlx5_l3t_clear_entry(priv->mtr_profile_tbl,
meter_profile_id);
if (!ret || ret == -1)
return NULL;
return fmp;
}
/**
* Validate the MTR profile.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] meter_profile_id
* Meter profile id.
* @param[in] profile
* Pointer to meter profile detail.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_profile_validate(struct rte_eth_dev *dev,
uint32_t meter_profile_id,
struct rte_mtr_meter_profile *profile,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_profile *fmp;
uint32_t ls_factor;
int ret;
uint64_t cir, cbs;
uint64_t eir, ebs;
uint64_t pir, pbs;
/* Profile must not be NULL. */
if (profile == NULL)
return -rte_mtr_error_set(error, EINVAL,
RTE_MTR_ERROR_TYPE_METER_PROFILE,
NULL, "Meter profile is null.");
/* Meter profile ID must be valid. */
if (meter_profile_id == UINT32_MAX)
return -rte_mtr_error_set(error, EINVAL,
RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
NULL, "Meter profile id not valid.");
/* Meter profile must not exist. */
fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
if (fmp)
return -rte_mtr_error_set(error, EEXIST,
RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
NULL,
"Meter profile already exists.");
if (!priv->sh->meter_aso_en) {
/* Old version is even not supported. */
if (!priv->sh->cdev->config.hca_attr.qos.flow_meter_old)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_PROFILE,
NULL, "Metering is not supported.");
/* Old FW metering only supports srTCM. */
if (profile->alg != RTE_MTR_SRTCM_RFC2697) {
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_PROFILE,
NULL, "Metering algorithm is not supported.");
} else if (profile->srtcm_rfc2697.ebs) {
/* EBS is not supported for old metering. */
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_PROFILE,
NULL, "EBS is not supported.");
}
if (profile->packet_mode)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_PROFILE, NULL,
"Metering algorithm packet mode is not supported.");
}
ls_factor = profile->packet_mode ? MLX5_MTRS_PPS_MAP_BPS_SHIFT : 0;
switch (profile->alg) {
case RTE_MTR_SRTCM_RFC2697:
cir = profile->srtcm_rfc2697.cir << ls_factor;
cbs = profile->srtcm_rfc2697.cbs << ls_factor;
ebs = profile->srtcm_rfc2697.ebs << ls_factor;
/* EBS could be zero for old metering. */
if (cir > 0 && cir <= MLX5_SRTCM_XIR_MAX &&
cbs > 0 && cbs <= MLX5_SRTCM_XBS_MAX &&
ebs <= MLX5_SRTCM_XBS_MAX) {
ret = 0;
} else {
ret = -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
"Profile values out of range.");
}
break;
case RTE_MTR_TRTCM_RFC2698:
cir = profile->trtcm_rfc2698.cir << ls_factor;
cbs = profile->trtcm_rfc2698.cbs << ls_factor;
pir = profile->trtcm_rfc2698.pir << ls_factor;
pbs = profile->trtcm_rfc2698.pbs << ls_factor;
if (cir > 0 && cir <= MLX5_SRTCM_XIR_MAX &&
cbs > 0 && cbs <= MLX5_SRTCM_XBS_MAX &&
pir >= cir && pir <= (MLX5_SRTCM_XIR_MAX * 2) &&
pbs >= cbs && pbs <= (MLX5_SRTCM_XBS_MAX * 2)) {
ret = 0;
} else {
ret = -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
"Profile values out of range.");
}
break;
case RTE_MTR_TRTCM_RFC4115:
cir = profile->trtcm_rfc4115.cir << ls_factor;
cbs = profile->trtcm_rfc4115.cbs << ls_factor;
eir = profile->trtcm_rfc4115.eir << ls_factor;
ebs = profile->trtcm_rfc4115.ebs << ls_factor;
if (cir > 0 && cir <= MLX5_SRTCM_XIR_MAX &&
cbs > 0 && cbs <= MLX5_SRTCM_XBS_MAX &&
eir <= MLX5_SRTCM_XIR_MAX && ebs <= MLX5_SRTCM_XBS_MAX) {
ret = 0;
} else {
ret = -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
"Profile values out of range.");
}
break;
default:
ret = -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
"Unknown metering algorithm.");
break;
}
return ret;
}
/*
* Calculate mantissa and exponent for cir / eir.
*
* @param[in] xir
* Value to be calculated.
* @param[out] man
* Pointer to the mantissa.
* @param[out] exp
* Pointer to the exp.
*/
static inline void
mlx5_flow_meter_xir_man_exp_calc(int64_t xir, uint8_t *man, uint8_t *exp)
{
int64_t _xir;
int64_t delta = INT64_MAX;
uint8_t _man = 0;
uint8_t _exp = 0;
uint64_t m, e;
/* Special case xir == 0 ? both exp and mantissa are 0. */
if (xir == 0) {
*man = 0;
*exp = 0;
return;
}
for (m = 0; m <= 0xFF; m++) { /* man width 8 bit */
for (e = 0; e <= 0x1F; e++) { /* exp width 5bit */
_xir = (1000000000ULL * m) >> e;
if (llabs(xir - _xir) <= delta) {
delta = llabs(xir - _xir);
_man = m;
_exp = e;
}
}
}
*man = _man;
*exp = _exp;
}
/*
* Calculate mantissa and exponent for xbs.
*
* @param[in] xbs
* Value to be calculated.
* @param[out] man
* Pointer to the mantissa.
* @param[out] exp
* Pointer to the exp.
*/
static inline void
mlx5_flow_meter_xbs_man_exp_calc(uint64_t xbs, uint8_t *man, uint8_t *exp)
{
int _exp;
double _man;
/* Special case xbs == 0 ? both exp and mantissa are 0. */
if (xbs == 0) {
*man = 0;
*exp = 0;
return;
}
/* xbs = xbs_mantissa * 2^xbs_exponent */
_man = frexp(xbs, &_exp);
if (_exp >= MLX5_MAN_WIDTH) {
_man = _man * pow(2, MLX5_MAN_WIDTH);
_exp = _exp - MLX5_MAN_WIDTH;
}
*man = (uint8_t)ceil(_man);
*exp = _exp;
}
/**
* Fill the prm meter parameter.
*
* @param[in,out] fmp
* Pointer to meter profile to be converted.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_param_fill(struct mlx5_flow_meter_profile *fmp,
struct rte_mtr_error *error)
{
struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm = &fmp->srtcm_prm;
uint8_t man, exp;
uint32_t cbs_exp, cbs_man, cir_exp, cir_man;
uint32_t eir_exp, eir_man, ebs_exp, ebs_man;
uint64_t cir, cbs, eir, ebs;
switch (fmp->profile.alg) {
case RTE_MTR_SRTCM_RFC2697:
cir = fmp->profile.srtcm_rfc2697.cir;
cbs = fmp->profile.srtcm_rfc2697.cbs;
eir = 0;
ebs = fmp->profile.srtcm_rfc2697.ebs;
break;
case RTE_MTR_TRTCM_RFC2698:
MLX5_ASSERT(fmp->profile.trtcm_rfc2698.pir >
fmp->profile.trtcm_rfc2698.cir &&
fmp->profile.trtcm_rfc2698.pbs >
fmp->profile.trtcm_rfc2698.cbs);
cir = fmp->profile.trtcm_rfc2698.cir;
cbs = fmp->profile.trtcm_rfc2698.cbs;
/* EIR / EBS are filled with PIR / PBS. */
eir = fmp->profile.trtcm_rfc2698.pir;
ebs = fmp->profile.trtcm_rfc2698.pbs;
break;
case RTE_MTR_TRTCM_RFC4115:
cir = fmp->profile.trtcm_rfc4115.cir;
cbs = fmp->profile.trtcm_rfc4115.cbs;
eir = fmp->profile.trtcm_rfc4115.eir;
ebs = fmp->profile.trtcm_rfc4115.ebs;
break;
default:
return -rte_mtr_error_set(error, EINVAL,
RTE_MTR_ERROR_TYPE_METER_PROFILE, NULL,
"Metering algorithm mode is invalid");
}
/* Adjust the values for PPS mode. */
if (fmp->profile.packet_mode) {
cir <<= MLX5_MTRS_PPS_MAP_BPS_SHIFT;
cbs <<= MLX5_MTRS_PPS_MAP_BPS_SHIFT;
eir <<= MLX5_MTRS_PPS_MAP_BPS_SHIFT;
ebs <<= MLX5_MTRS_PPS_MAP_BPS_SHIFT;
}
/* cir = 8G * cir_mantissa * 1/(2^cir_exponent)) Bytes/Sec */
mlx5_flow_meter_xir_man_exp_calc(cir, &man, &exp);
/* Check if cir mantissa is too large. */
if (exp > ASO_DSEG_XIR_EXP_MASK)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
"meter profile parameter cir is not supported.");
cir_man = man;
cir_exp = exp;
/* cbs = cbs_mantissa * 2^cbs_exponent */
mlx5_flow_meter_xbs_man_exp_calc(cbs, &man, &exp);
/* Check if cbs mantissa is too large. */
if (exp > ASO_DSEG_EXP_MASK)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
"meter profile parameter cbs is not supported.");
cbs_man = man;
cbs_exp = exp;
srtcm->cbs_cir = rte_cpu_to_be_32(cbs_exp << ASO_DSEG_CBS_EXP_OFFSET |
cbs_man << ASO_DSEG_CBS_MAN_OFFSET |
cir_exp << ASO_DSEG_XIR_EXP_OFFSET |
cir_man);
mlx5_flow_meter_xir_man_exp_calc(eir, &man, &exp);
/* Check if eir mantissa is too large. */
if (exp > ASO_DSEG_XIR_EXP_MASK)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
"meter profile parameter eir is not supported.");
eir_man = man;
eir_exp = exp;
mlx5_flow_meter_xbs_man_exp_calc(ebs, &man, &exp);
/* Check if ebs mantissa is too large. */
if (exp > ASO_DSEG_EXP_MASK)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_PARAMS, NULL,
"meter profile parameter ebs is not supported.");
ebs_man = man;
ebs_exp = exp;
srtcm->ebs_eir = rte_cpu_to_be_32(ebs_exp << ASO_DSEG_EBS_EXP_OFFSET |
ebs_man << ASO_DSEG_EBS_MAN_OFFSET |
eir_exp << ASO_DSEG_XIR_EXP_OFFSET |
eir_man);
if (srtcm->cbs_cir)
fmp->g_support = 1;
if (srtcm->ebs_eir)
fmp->y_support = 1;
return 0;
}
/**
* Callback to get MTR capabilities.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[out] cap
* Pointer to save MTR capabilities.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_mtr_cap_get(struct rte_eth_dev *dev,
struct rte_mtr_capabilities *cap,
struct rte_mtr_error *error __rte_unused)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_hca_qos_attr *qattr = &priv->sh->cdev->config.hca_attr.qos;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter is not supported");
memset(cap, 0, sizeof(*cap));
if (priv->sh->meter_aso_en) {
/* 2 meters per one ASO cache line. */
cap->n_max = 1 << (qattr->log_max_num_meter_aso + 1);
cap->srtcm_rfc2697_packet_mode_supported = 1;
cap->trtcm_rfc2698_packet_mode_supported = 1;
cap->trtcm_rfc4115_packet_mode_supported = 1;
} else {
cap->n_max = 1 << qattr->log_max_flow_meter;
}
cap->srtcm_rfc2697_byte_mode_supported = 1;
cap->trtcm_rfc2698_byte_mode_supported = 1;
cap->trtcm_rfc4115_byte_mode_supported = 1;
cap->n_shared_max = cap->n_max;
cap->identical = 1;
cap->shared_identical = 1;
cap->shared_n_flows_per_mtr_max = 4 << 20;
/* 2M flows can share the same meter. */
cap->chaining_n_mtrs_per_flow_max = 1; /* Chaining is not supported. */
cap->meter_srtcm_rfc2697_n_max = qattr->flow_meter_old ? cap->n_max : 0;
cap->meter_trtcm_rfc2698_n_max = qattr->flow_meter_old ? cap->n_max : 0;
cap->meter_trtcm_rfc4115_n_max = qattr->flow_meter_old ? cap->n_max : 0;
cap->meter_rate_max = 1ULL << 40; /* 1 Tera tokens per sec. */
cap->meter_policy_n_max = cap->n_max;
cap->stats_mask = RTE_MTR_STATS_N_BYTES_DROPPED |
RTE_MTR_STATS_N_PKTS_DROPPED;
return 0;
}
/**
* Callback to add MTR profile.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] meter_profile_id
* Meter profile id.
* @param[in] profile
* Pointer to meter profile detail.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_profile_add(struct rte_eth_dev *dev,
uint32_t meter_profile_id,
struct rte_mtr_meter_profile *profile,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_profile *fmp;
union mlx5_l3t_data data;
int ret;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter is not supported");
/* Check input params. */
ret = mlx5_flow_meter_profile_validate(dev, meter_profile_id,
profile, error);
if (ret)
return ret;
/* Meter profile memory allocation. */
fmp = mlx5_malloc(MLX5_MEM_ZERO, sizeof(struct mlx5_flow_meter_profile),
RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
if (fmp == NULL)
return -rte_mtr_error_set(error, ENOMEM,
RTE_MTR_ERROR_TYPE_UNSPECIFIED,
NULL, "Meter profile memory "
"alloc failed.");
/* Fill profile info. */
fmp->id = meter_profile_id;
fmp->profile = *profile;
/* Fill the flow meter parameters for the PRM. */
ret = mlx5_flow_meter_param_fill(fmp, error);
if (ret)
goto error;
data.ptr = fmp;
ret = mlx5_l3t_set_entry(priv->mtr_profile_tbl,
meter_profile_id, &data);
if (ret)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED,
NULL, "Meter profile insert fail.");
return 0;
error:
mlx5_free(fmp);
return ret;
}
/**
* Callback to delete MTR profile.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] meter_profile_id
* Meter profile id.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_profile_delete(struct rte_eth_dev *dev,
uint32_t meter_profile_id,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_profile *fmp;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter is not supported");
/* Meter profile must exist. */
fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
if (fmp == NULL)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
&meter_profile_id,
"Meter profile id is invalid.");
/* Check profile is unused. */
if (fmp->ref_cnt)
return -rte_mtr_error_set(error, EBUSY,
RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
NULL, "Meter profile is in use.");
if (mlx5_l3t_clear_entry(priv->mtr_profile_tbl, meter_profile_id))
return -rte_mtr_error_set(error, EBUSY,
RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
NULL, "Meter profile remove fail.");
mlx5_free(fmp);
return 0;
}
/**
* Find policy by id.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param policy_id
* Policy id.
*
* @return
* Pointer to the policy found on success, NULL otherwise.
*/
struct mlx5_flow_meter_policy *
mlx5_flow_meter_policy_find(struct rte_eth_dev *dev,
uint32_t policy_id,
uint32_t *policy_idx)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_sub_policy *sub_policy = NULL;
union mlx5_l3t_data data;
if (policy_id > MLX5_MAX_SUB_POLICY_TBL_NUM || !priv->policy_idx_tbl)
return NULL;
if (mlx5_l3t_get_entry(priv->policy_idx_tbl, policy_id, &data) ||
!data.dword)
return NULL;
if (policy_idx)
*policy_idx = data.dword;
sub_policy = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MTR_POLICY],
data.dword);
/* Remove reference taken by the mlx5_l3t_get_entry. */
mlx5_l3t_clear_entry(priv->policy_idx_tbl, policy_id);
if (sub_policy)
if (sub_policy->main_policy_id)
return sub_policy->main_policy;
return NULL;
}
/**
* Get the next meter from one meter's policy in hierarchy chain.
* Lock free, mutex should be acquired by caller.
*
* @param[in] priv
* Pointer to mlx5_priv.
* @param[in] policy
* Pointer to flow meter policy.
* @param[out] mtr_idx
* Pointer to Meter index.
*
* @return
* Pointer to the next meter, or NULL when fail.
*/
struct mlx5_flow_meter_info *
mlx5_flow_meter_hierarchy_next_meter(struct mlx5_priv *priv,
struct mlx5_flow_meter_policy *policy,
uint32_t *mtr_idx)
{
int i;
for (i = 0; i < MLX5_MTR_RTE_COLORS; i++) {
if (policy->act_cnt[i].fate_action == MLX5_FLOW_FATE_MTR)
return mlx5_flow_meter_find(priv,
policy->act_cnt[i].next_mtr_id,
mtr_idx);
}
return NULL;
}
/**
* Get the last meter's policy from one meter's policy in hierarchy.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] policy
* Pointer to flow meter policy.
*
* @return
* Pointer to the final meter's policy, or NULL when fail.
*/
struct mlx5_flow_meter_policy *
mlx5_flow_meter_hierarchy_get_final_policy(struct rte_eth_dev *dev,
struct mlx5_flow_meter_policy *policy)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_info *next_fm;
struct mlx5_flow_meter_policy *next_policy = policy;
while (next_policy->is_hierarchy) {
rte_spinlock_lock(&next_policy->sl);
next_fm = mlx5_flow_meter_hierarchy_next_meter(priv, next_policy, NULL);
rte_spinlock_unlock(&next_policy->sl);
if (!next_fm || next_fm->def_policy)
return NULL;
next_policy = mlx5_flow_meter_policy_find(dev,
next_fm->policy_id, NULL);
MLX5_ASSERT(next_policy);
}
return next_policy;
}
/**
* Callback to check MTR policy action validate
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] actions
* Pointer to meter policy action detail.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_policy_validate(struct rte_eth_dev *dev,
struct rte_mtr_meter_policy_params *policy,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow_attr attr = { .transfer = priv->sh->config.dv_esw_en ?
1 : 0 };
bool is_rss = false;
uint8_t policy_mode;
uint8_t domain_bitmap;
int ret;
if (!priv->mtr_en || !priv->sh->meter_aso_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY,
NULL, "meter policy unsupported.");
ret = mlx5_flow_validate_mtr_acts(dev, policy->actions, &attr,
&is_rss, &domain_bitmap, &policy_mode, error);
if (ret)
return ret;
return 0;
}
static int
__mlx5_flow_meter_policy_delete(struct rte_eth_dev *dev,
uint32_t policy_id,
struct mlx5_flow_meter_policy *mtr_policy,
struct rte_mtr_error *error,
bool clear_l3t)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_sub_policy *sub_policy;
uint32_t i, j;
uint16_t sub_policy_num;
rte_spinlock_lock(&mtr_policy->sl);
if (mtr_policy->ref_cnt) {
rte_spinlock_unlock(&mtr_policy->sl);
return -rte_mtr_error_set(error, EBUSY,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL,
"Meter policy object is being used.");
}
mlx5_flow_destroy_policy_rules(dev, mtr_policy);
mlx5_flow_destroy_mtr_acts(dev, mtr_policy);
for (i = 0; i < MLX5_MTR_DOMAIN_MAX; i++) {
sub_policy_num = (mtr_policy->sub_policy_num >>
(MLX5_MTR_SUB_POLICY_NUM_SHIFT * i)) &
MLX5_MTR_SUB_POLICY_NUM_MASK;
if (sub_policy_num) {
for (j = 0; j < sub_policy_num; j++) {
sub_policy = mtr_policy->sub_policys[i][j];
if (sub_policy)
mlx5_ipool_free
(priv->sh->ipool[MLX5_IPOOL_MTR_POLICY],
sub_policy->idx);
}
}
}
if (priv->policy_idx_tbl && clear_l3t) {
if (mlx5_l3t_clear_entry(priv->policy_idx_tbl, policy_id)) {
rte_spinlock_unlock(&mtr_policy->sl);
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID, NULL,
"Fail to delete policy in index table.");
}
}
rte_spinlock_unlock(&mtr_policy->sl);
return 0;
}
/**
* Callback to add MTR policy.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[out] policy_id
* Pointer to policy id
* @param[in] actions
* Pointer to meter policy action detail.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_policy_add(struct rte_eth_dev *dev,
uint32_t policy_id,
struct rte_mtr_meter_policy_params *policy,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct rte_flow_attr attr = { .transfer = priv->sh->config.dv_esw_en ?
1 : 0 };
uint32_t sub_policy_idx = 0;
uint32_t policy_idx = 0;
struct mlx5_flow_meter_policy *mtr_policy = NULL;
struct mlx5_flow_meter_sub_policy *sub_policy;
bool is_rss = false;
uint8_t policy_mode;
uint32_t i;
int ret;
uint32_t policy_size = sizeof(struct mlx5_flow_meter_policy);
uint16_t sub_policy_num;
uint8_t domain_bitmap = 0;
union mlx5_l3t_data data;
bool skip_rule = false;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY,
NULL, "meter policy unsupported. ");
if (policy_id == MLX5_INVALID_POLICY_ID)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "policy ID is invalid. ");
if (policy_id == priv->sh->mtrmng->def_policy_id)
return -rte_mtr_error_set(error, EEXIST,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "default policy ID exists. ");
mtr_policy = mlx5_flow_meter_policy_find(dev, policy_id, &policy_idx);
if (mtr_policy)
return -rte_mtr_error_set(error, EEXIST,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "policy ID exists. ");
ret = mlx5_flow_validate_mtr_acts(dev, policy->actions, &attr,
&is_rss, &domain_bitmap,
&policy_mode, error);
if (ret)
return ret;
if (!domain_bitmap)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY,
NULL, "fail to find policy domain.");
if (policy_mode == MLX5_MTR_POLICY_MODE_DEF) {
if (priv->sh->mtrmng->def_policy_id != MLX5_INVALID_POLICY_ID)
return -rte_mtr_error_set(error, EEXIST,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "a policy with similar actions "
"is already configured");
if (mlx5_flow_create_def_policy(dev))
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY,
NULL,
"fail to create non-terminated policy.");
priv->sh->mtrmng->def_policy_id = policy_id;
return 0;
}
if (!priv->sh->meter_aso_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY, NULL,
"no ASO capability to support the policy ");
for (i = 0; i < MLX5_MTR_DOMAIN_MAX; i++) {
if (!(domain_bitmap & (1 << i)))
continue;
/*
* If RSS is found, it means that only the ingress domain can
* be supported. It is invalid to support RSS for one color
* and egress / transfer domain actions for another. Drop and
* jump action should have no impact.
*/
if (is_rss) {
policy_size +=
sizeof(struct mlx5_flow_meter_sub_policy *) *
MLX5_MTR_RSS_MAX_SUB_POLICY;
break;
}
policy_size += sizeof(struct mlx5_flow_meter_sub_policy *);
}
mtr_policy = mlx5_malloc(MLX5_MEM_ZERO, policy_size,
RTE_CACHE_LINE_SIZE, SOCKET_ID_ANY);
if (!mtr_policy)
return -rte_mtr_error_set(error, ENOMEM,
RTE_MTR_ERROR_TYPE_METER_POLICY, NULL,
"Memory alloc failed for meter policy.");
if (policy_mode == MLX5_MTR_POLICY_MODE_OG)
mtr_policy->skip_y = 1;
else if (policy_mode == MLX5_MTR_POLICY_MODE_OY)
mtr_policy->skip_g = 1;
policy_size = sizeof(struct mlx5_flow_meter_policy);
for (i = 0; i < MLX5_MTR_DOMAIN_MAX; i++) {
if (!(domain_bitmap & (1 << i)))
continue;
if (i == MLX5_MTR_DOMAIN_INGRESS)
mtr_policy->ingress = 1;
if (i == MLX5_MTR_DOMAIN_EGRESS)
mtr_policy->egress = 1;
if (i == MLX5_MTR_DOMAIN_TRANSFER)
mtr_policy->transfer = 1;
sub_policy = mlx5_ipool_zmalloc
(priv->sh->ipool[MLX5_IPOOL_MTR_POLICY],
&sub_policy_idx);
if (!sub_policy ||
sub_policy_idx > MLX5_MAX_SUB_POLICY_TBL_NUM)
goto policy_add_err;
sub_policy->idx = sub_policy_idx;
sub_policy->main_policy = mtr_policy;
if (!policy_idx) {
policy_idx = sub_policy_idx;
sub_policy->main_policy_id = 1;
}
mtr_policy->sub_policys[i] =
(struct mlx5_flow_meter_sub_policy **)
((uint8_t *)mtr_policy + policy_size);
mtr_policy->sub_policys[i][0] = sub_policy;
sub_policy_num = (mtr_policy->sub_policy_num >>
(MLX5_MTR_SUB_POLICY_NUM_SHIFT * i)) &
MLX5_MTR_SUB_POLICY_NUM_MASK;
sub_policy_num++;
mtr_policy->sub_policy_num &= ~(MLX5_MTR_SUB_POLICY_NUM_MASK <<
(MLX5_MTR_SUB_POLICY_NUM_SHIFT * i));
mtr_policy->sub_policy_num |=
(sub_policy_num & MLX5_MTR_SUB_POLICY_NUM_MASK) <<
(MLX5_MTR_SUB_POLICY_NUM_SHIFT * i);
/*
* If RSS is found, it means that only the ingress domain can
* be supported. It is invalid to support RSS for one color
* and egress / transfer domain actions for another. Drop and
* jump action should have no impact.
*/
if (is_rss) {
mtr_policy->is_rss = 1;
break;
}
policy_size += sizeof(struct mlx5_flow_meter_sub_policy *);
}
rte_spinlock_init(&mtr_policy->sl);
ret = mlx5_flow_create_mtr_acts(dev, mtr_policy,
policy->actions, error);
if (ret)
goto policy_add_err;
if (mtr_policy->is_hierarchy) {
struct mlx5_flow_meter_policy *final_policy;
final_policy =
mlx5_flow_meter_hierarchy_get_final_policy(dev, mtr_policy);
if (!final_policy)
goto policy_add_err;
skip_rule = (final_policy->is_rss || final_policy->is_queue);
}
/*
* If either Green or Yellow has queue / RSS action, all the policy
* rules will be created later in the flow splitting stage.
*/
if (!is_rss && !mtr_policy->is_queue && !skip_rule) {
/* Create policy rules in HW. */
ret = mlx5_flow_create_policy_rules(dev, mtr_policy);
if (ret)
goto policy_add_err;
}
data.dword = policy_idx;
if (!priv->policy_idx_tbl) {
priv->policy_idx_tbl = mlx5_l3t_create(MLX5_L3T_TYPE_DWORD);
if (!priv->policy_idx_tbl)
goto policy_add_err;
}
if (mlx5_l3t_set_entry(priv->policy_idx_tbl, policy_id, &data))
goto policy_add_err;
return 0;
policy_add_err:
if (mtr_policy) {
ret = __mlx5_flow_meter_policy_delete(dev, policy_id,
mtr_policy, error, false);
mlx5_free(mtr_policy);
if (ret)
return ret;
}
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED,
NULL, "Failed to create devx policy.");
}
/**
* Callback to delete MTR policy.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] policy_id
* Meter policy id.
* @param[out] error
* Pointer to the error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_policy_delete(struct rte_eth_dev *dev,
uint32_t policy_id,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_policy *mtr_policy;
uint32_t policy_idx;
int ret;
if (policy_id == priv->sh->mtrmng->def_policy_id) {
if (priv->sh->mtrmng->def_policy_ref_cnt > 0)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID, NULL,
"Meter policy object is being used.");
priv->sh->mtrmng->def_policy_id = MLX5_INVALID_POLICY_ID;
return 0;
}
mtr_policy = mlx5_flow_meter_policy_find(dev, policy_id, &policy_idx);
if (!mtr_policy)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID, NULL,
"Meter policy id is invalid. ");
ret = __mlx5_flow_meter_policy_delete(dev, policy_id, mtr_policy,
error, true);
if (ret)
return ret;
mlx5_free(mtr_policy);
return 0;
}
/**
* Check meter validation.
*
* @param[in] priv
* Pointer to mlx5 private data structure.
* @param[in] meter_id
* Meter id.
* @param[in] params
* Pointer to rte meter parameters.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_validate(struct mlx5_priv *priv, uint32_t meter_id,
struct rte_mtr_params *params,
struct rte_mtr_error *error)
{
/* Meter must use global drop action. */
if (!priv->sh->dr_drop_action)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_PARAMS,
NULL,
"No drop action ready for meter.");
/* Meter params must not be NULL. */
if (params == NULL)
return -rte_mtr_error_set(error, EINVAL,
RTE_MTR_ERROR_TYPE_MTR_PARAMS,
NULL, "Meter object params null.");
/* Previous meter color is not supported. */
if (params->use_prev_mtr_color && !priv->sh->meter_aso_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_PARAMS,
NULL,
"Previous meter color "
"not supported.");
if (params->meter_policy_id == MLX5_INVALID_POLICY_ID)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "Meter policy id not valid.");
/* Validate meter id. */
if (mlx5_flow_meter_find(priv, meter_id, NULL))
return -rte_mtr_error_set(error, EEXIST,
RTE_MTR_ERROR_TYPE_MTR_ID, NULL,
"Meter object already exists.");
return 0;
}
/**
* Modify the flow meter action.
*
* @param[in] priv
* Pointer to mlx5 private data structure.
* @param[in] fm
* Pointer to flow meter to be modified.
* @param[in] srtcm
* Pointer to meter srtcm description parameter.
* @param[in] modify_bits
* The bit in srtcm to be updated.
* @param[in] active_state
* The state to be updated.
* @return
* 0 on success, o negative value otherwise.
*/
static int
mlx5_flow_meter_action_modify(struct mlx5_priv *priv,
struct mlx5_flow_meter_info *fm,
const struct mlx5_flow_meter_srtcm_rfc2697_prm *srtcm,
uint64_t modify_bits, uint32_t active_state, uint32_t is_enable)
{
#ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER
uint32_t in[MLX5_ST_SZ_DW(flow_meter_parameters)] = { 0 };
uint32_t *attr;
struct mlx5dv_dr_flow_meter_attr mod_attr = { 0 };
int ret;
struct mlx5_aso_mtr *aso_mtr = NULL;
uint32_t cbs_cir, ebs_eir, val;
if (priv->sh->meter_aso_en) {
fm->is_enable = !!is_enable;
aso_mtr = container_of(fm, struct mlx5_aso_mtr, fm);
ret = mlx5_aso_meter_update_by_wqe(priv->sh, aso_mtr);
if (ret)
return ret;
ret = mlx5_aso_mtr_wait(priv->sh, aso_mtr);
if (ret)
return ret;
} else {
/* Fill command parameters. */
mod_attr.reg_c_index = priv->mtr_color_reg - REG_C_0;
mod_attr.flow_meter_parameter = in;
mod_attr.flow_meter_parameter_sz =
MLX5_ST_SZ_BYTES(flow_meter_parameters);
if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_ACTIVE)
mod_attr.active = !!active_state;
else
mod_attr.active = 0;
attr = in;
cbs_cir = rte_be_to_cpu_32(srtcm->cbs_cir);
ebs_eir = rte_be_to_cpu_32(srtcm->ebs_eir);
if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS) {
val = (cbs_cir >> ASO_DSEG_CBS_EXP_OFFSET) &
ASO_DSEG_EXP_MASK;
MLX5_SET(flow_meter_parameters, attr,
cbs_exponent, val);
val = (cbs_cir >> ASO_DSEG_CBS_MAN_OFFSET) &
ASO_DSEG_MAN_MASK;
MLX5_SET(flow_meter_parameters, attr,
cbs_mantissa, val);
}
if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR) {
val = (cbs_cir >> ASO_DSEG_XIR_EXP_OFFSET) &
ASO_DSEG_EXP_MASK;
MLX5_SET(flow_meter_parameters, attr,
cir_exponent, val);
val = cbs_cir & ASO_DSEG_MAN_MASK;
MLX5_SET(flow_meter_parameters, attr,
cir_mantissa, val);
}
if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_EBS) {
val = (ebs_eir >> ASO_DSEG_EBS_EXP_OFFSET) &
ASO_DSEG_EXP_MASK;
MLX5_SET(flow_meter_parameters, attr,
ebs_exponent, val);
val = (ebs_eir >> ASO_DSEG_EBS_MAN_OFFSET) &
ASO_DSEG_MAN_MASK;
MLX5_SET(flow_meter_parameters, attr,
ebs_mantissa, val);
}
/* Apply modifications to meter only if it was created. */
if (fm->meter_action_g) {
ret = mlx5_glue->dv_modify_flow_action_meter
(fm->meter_action_g, &mod_attr,
rte_cpu_to_be_64(modify_bits));
if (ret)
return ret;
}
/* Update succeeded modify meter parameters. */
if (modify_bits & MLX5_FLOW_METER_OBJ_MODIFY_FIELD_ACTIVE)
fm->active_state = !!active_state;
}
return 0;
#else
(void)priv;
(void)fm;
(void)srtcm;
(void)modify_bits;
(void)active_state;
(void)is_enable;
return -ENOTSUP;
#endif
}
static int
mlx5_flow_meter_stats_enable_update(struct rte_eth_dev *dev,
struct mlx5_flow_meter_info *fm,
uint64_t stats_mask)
{
fm->bytes_dropped =
(stats_mask & RTE_MTR_STATS_N_BYTES_DROPPED) ? 1 : 0;
fm->pkts_dropped = (stats_mask & RTE_MTR_STATS_N_PKTS_DROPPED) ? 1 : 0;
if (fm->bytes_dropped || fm->pkts_dropped) {
if (!fm->drop_cnt) {
/* Alloc policer counters. */
fm->drop_cnt = mlx5_counter_alloc(dev);
if (!fm->drop_cnt)
return -1;
}
} else {
if (fm->drop_cnt) {
mlx5_counter_free(dev, fm->drop_cnt);
fm->drop_cnt = 0;
}
}
return 0;
}
/**
* Create meter rules.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] meter_id
* Meter id.
* @param[in] params
* Pointer to rte meter parameters.
* @param[in] shared
* Meter shared with other flow or not.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_create(struct rte_eth_dev *dev, uint32_t meter_id,
struct rte_mtr_params *params, int shared,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_legacy_flow_meters *fms = &priv->flow_meters;
struct mlx5_flow_meter_profile *fmp;
struct mlx5_flow_meter_info *fm;
/* GCC fails to infer legacy_fm is set when !priv->sh->meter_aso_en. */
struct mlx5_legacy_flow_meter *legacy_fm = NULL;
struct mlx5_flow_meter_policy *mtr_policy = NULL;
struct mlx5_indexed_pool_config flow_ipool_cfg = {
.size = 0,
.trunk_size = 64,
.need_lock = 1,
.type = "mlx5_flow_mtr_flow_id_pool",
};
struct mlx5_aso_mtr *aso_mtr;
uint32_t mtr_idx, policy_idx;
union mlx5_l3t_data data;
int ret;
uint8_t domain_bitmap;
uint8_t mtr_id_bits;
uint8_t mtr_reg_bits = priv->mtr_reg_share ?
MLX5_MTR_IDLE_BITS_IN_COLOR_REG : MLX5_REG_BITS;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter is not supported");
/* Validate the parameters. */
ret = mlx5_flow_meter_validate(priv, meter_id, params, error);
if (ret)
return ret;
/* Meter profile must exist. */
fmp = mlx5_flow_meter_profile_find(priv, params->meter_profile_id);
if (fmp == NULL)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
NULL, "Meter profile id not valid.");
/* Meter policy must exist. */
if (params->meter_policy_id == priv->sh->mtrmng->def_policy_id) {
__atomic_add_fetch
(&priv->sh->mtrmng->def_policy_ref_cnt,
1, __ATOMIC_RELAXED);
domain_bitmap = MLX5_MTR_ALL_DOMAIN_BIT;
if (!priv->sh->config.dv_esw_en)
domain_bitmap &= ~MLX5_MTR_DOMAIN_TRANSFER_BIT;
} else {
if (!priv->sh->meter_aso_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Part of the policies cannot be "
"supported without ASO ");
mtr_policy = mlx5_flow_meter_policy_find(dev,
params->meter_policy_id, &policy_idx);
if (!mtr_policy)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "Meter policy id not valid.");
domain_bitmap = (mtr_policy->ingress ?
MLX5_MTR_DOMAIN_INGRESS_BIT : 0) |
(mtr_policy->egress ?
MLX5_MTR_DOMAIN_EGRESS_BIT : 0) |
(mtr_policy->transfer ?
MLX5_MTR_DOMAIN_TRANSFER_BIT : 0);
if (fmp->g_support && mtr_policy->skip_g)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "Meter green policy is empty.");
if (fmp->y_support && mtr_policy->skip_y)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "Meter yellow policy is empty.");
}
/* Allocate the flow meter memory. */
if (priv->sh->meter_aso_en) {
mtr_idx = mlx5_flow_mtr_alloc(dev);
if (!mtr_idx)
return -rte_mtr_error_set(error, ENOMEM,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Memory alloc failed for meter.");
aso_mtr = mlx5_aso_meter_by_idx(priv, mtr_idx);
fm = &aso_mtr->fm;
} else {
if (fmp->y_support)
return -rte_mtr_error_set(error, ENOMEM,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Unsupported profile with yellow.");
legacy_fm = mlx5_ipool_zmalloc
(priv->sh->ipool[MLX5_IPOOL_MTR], &mtr_idx);
if (legacy_fm == NULL)
return -rte_mtr_error_set(error, ENOMEM,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Memory alloc failed for meter.");
legacy_fm->idx = mtr_idx;
fm = &legacy_fm->fm;
}
mtr_id_bits = MLX5_REG_BITS - __builtin_clz(mtr_idx);
if ((mtr_id_bits + priv->sh->mtrmng->max_mtr_flow_bits) >
mtr_reg_bits) {
DRV_LOG(ERR, "Meter number exceeds max limit.");
goto error;
}
if (mtr_id_bits > priv->sh->mtrmng->max_mtr_bits)
priv->sh->mtrmng->max_mtr_bits = mtr_id_bits;
/* Fill the flow meter parameters. */
fm->meter_id = meter_id;
fm->policy_id = params->meter_policy_id;
fm->profile = fmp;
if (mlx5_flow_meter_stats_enable_update(dev, fm, params->stats_mask))
goto error;
if (mlx5_flow_create_mtr_tbls(dev, fm, mtr_idx, domain_bitmap))
goto error;
/* Add to the flow meter list. */
if (!priv->sh->meter_aso_en) {
MLX5_ASSERT(legacy_fm != NULL);
TAILQ_INSERT_TAIL(fms, legacy_fm, next);
}
/* Add to the flow meter list. */
fm->active_state = 1; /* Config meter starts as active. */
fm->is_enable = params->meter_enable;
fm->shared = !!shared;
fm->color_aware = !!params->use_prev_mtr_color;
__atomic_add_fetch(&fm->profile->ref_cnt, 1, __ATOMIC_RELAXED);
if (params->meter_policy_id == priv->sh->mtrmng->def_policy_id) {
fm->def_policy = 1;
fm->flow_ipool = mlx5_ipool_create(&flow_ipool_cfg);
if (!fm->flow_ipool)
goto error;
}
rte_spinlock_init(&fm->sl);
/* If ASO meter supported, update ASO flow meter by wqe. */
if (priv->sh->meter_aso_en) {
aso_mtr = container_of(fm, struct mlx5_aso_mtr, fm);
ret = mlx5_aso_meter_update_by_wqe(priv->sh, aso_mtr);
if (ret)
goto error;
if (!priv->mtr_idx_tbl) {
priv->mtr_idx_tbl =
mlx5_l3t_create(MLX5_L3T_TYPE_DWORD);
if (!priv->mtr_idx_tbl)
goto error;
}
data.dword = mtr_idx;
if (mlx5_l3t_set_entry(priv->mtr_idx_tbl, meter_id, &data))
goto error;
} else if (!params->meter_enable && mlx5_flow_meter_disable(dev, meter_id, error)) {
goto error;
}
fm->active_state = params->meter_enable;
if (mtr_policy)
__atomic_add_fetch(&mtr_policy->ref_cnt, 1, __ATOMIC_RELAXED);
return 0;
error:
mlx5_flow_destroy_mtr_tbls(dev, fm);
/* Free policer counters. */
if (fm->drop_cnt)
mlx5_counter_free(dev, fm->drop_cnt);
if (priv->sh->meter_aso_en)
mlx5_flow_mtr_free(dev, mtr_idx);
else
mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR], mtr_idx);
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED,
NULL, "Failed to create devx meter.");
}
static int
mlx5_flow_meter_params_flush(struct rte_eth_dev *dev,
struct mlx5_flow_meter_info *fm,
uint32_t mtr_idx)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_legacy_flow_meters *fms = &priv->flow_meters;
struct mlx5_flow_meter_profile *fmp;
struct mlx5_legacy_flow_meter *legacy_fm = NULL;
struct mlx5_flow_meter_policy *mtr_policy;
/* Meter object must not have any owner. */
MLX5_ASSERT(!fm->ref_cnt);
/* Get meter profile. */
fmp = fm->profile;
if (fmp == NULL)
return -1;
/* Update dependencies. */
__atomic_sub_fetch(&fmp->ref_cnt, 1, __ATOMIC_RELAXED);
fm->profile = NULL;
/* Remove from list. */
if (!priv->sh->meter_aso_en) {
legacy_fm = container_of(fm,
struct mlx5_legacy_flow_meter, fm);
TAILQ_REMOVE(fms, legacy_fm, next);
}
/* Free drop counters. */
if (fm->drop_cnt)
mlx5_counter_free(dev, fm->drop_cnt);
/* Free meter flow table. */
if (fm->flow_ipool) {
mlx5_ipool_destroy(fm->flow_ipool);
fm->flow_ipool = 0;
}
mlx5_flow_destroy_mtr_tbls(dev, fm);
if (fm->def_policy)
__atomic_sub_fetch(&priv->sh->mtrmng->def_policy_ref_cnt,
1, __ATOMIC_RELAXED);
if (priv->sh->meter_aso_en) {
if (!fm->def_policy) {
mtr_policy = mlx5_flow_meter_policy_find(dev,
fm->policy_id, NULL);
if (mtr_policy)
__atomic_sub_fetch(&mtr_policy->ref_cnt,
1, __ATOMIC_RELAXED);
fm->policy_id = 0;
}
fm->def_policy = 0;
if (mlx5_l3t_clear_entry(priv->mtr_idx_tbl, fm->meter_id))
return -1;
mlx5_flow_mtr_free(dev, mtr_idx);
} else {
mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR],
legacy_fm->idx);
}
return 0;
}
/**
* Destroy meter rules.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] meter_id
* Meter id.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_destroy(struct rte_eth_dev *dev, uint32_t meter_id,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_info *fm;
uint32_t mtr_idx = 0;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED,
NULL,
"Meter is not supported");
/* Meter object must exist. */
fm = mlx5_flow_meter_find(priv, meter_id, &mtr_idx);
if (fm == NULL)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_MTR_ID,
NULL,
"Meter object id not valid.");
/* Meter object must not have any owner. */
if (fm->ref_cnt > 0)
return -rte_mtr_error_set(error, EBUSY,
RTE_MTR_ERROR_TYPE_UNSPECIFIED,
NULL,
"Meter object is being used.");
/* Destroy the meter profile. */
if (mlx5_flow_meter_params_flush(dev, fm, mtr_idx))
return -rte_mtr_error_set(error, EINVAL,
RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
NULL,
"MTR object meter profile invalid.");
return 0;
}
/**
* Modify meter state.
*
* @param[in] priv
* Pointer to mlx5 private data structure.
* @param[in] fm
* Pointer to flow meter.
* @param[in] new_state
* New state to update.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_modify_state(struct mlx5_priv *priv,
struct mlx5_flow_meter_info *fm,
uint32_t new_state,
struct rte_mtr_error *error)
{
static const struct mlx5_flow_meter_srtcm_rfc2697_prm srtcm = {
.cbs_cir = RTE_BE32(MLX5_IFC_FLOW_METER_DISABLE_CBS_CIR_VAL),
.ebs_eir = 0,
};
uint64_t modify_bits = MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS |
MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR;
int ret;
if (new_state == MLX5_FLOW_METER_DISABLE)
ret = mlx5_flow_meter_action_modify(priv, fm,
&srtcm, modify_bits, 0, 0);
else
ret = mlx5_flow_meter_action_modify(priv, fm,
&fm->profile->srtcm_prm,
modify_bits, 0, 1);
if (ret)
return -rte_mtr_error_set(error, -ret,
RTE_MTR_ERROR_TYPE_MTR_PARAMS,
NULL,
new_state ?
"Failed to enable meter." :
"Failed to disable meter.");
return 0;
}
/**
* Callback to enable flow meter.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] meter_id
* Meter id.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_enable(struct rte_eth_dev *dev,
uint32_t meter_id,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_info *fm;
int ret;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter is not supported");
/* Meter object must exist. */
fm = mlx5_flow_meter_find(priv, meter_id, NULL);
if (fm == NULL)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_MTR_ID,
NULL, "Meter not found.");
if (fm->active_state == MLX5_FLOW_METER_ENABLE)
return 0;
ret = mlx5_flow_meter_modify_state(priv, fm, MLX5_FLOW_METER_ENABLE,
error);
if (!ret)
fm->active_state = MLX5_FLOW_METER_ENABLE;
return ret;
}
/**
* Callback to disable flow meter.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] meter_id
* Meter id.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_disable(struct rte_eth_dev *dev,
uint32_t meter_id,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_info *fm;
int ret;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter is not supported");
/* Meter object must exist. */
fm = mlx5_flow_meter_find(priv, meter_id, NULL);
if (fm == NULL)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_MTR_ID,
NULL, "Meter not found.");
if (fm->active_state == MLX5_FLOW_METER_DISABLE)
return 0;
ret = mlx5_flow_meter_modify_state(priv, fm, MLX5_FLOW_METER_DISABLE,
error);
if (!ret)
fm->active_state = MLX5_FLOW_METER_DISABLE;
return ret;
}
/**
* Callback to update meter profile.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] meter_id
* Meter id.
* @param[in] meter_profile_id
* To be updated meter profile id.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_profile_update(struct rte_eth_dev *dev,
uint32_t meter_id,
uint32_t meter_profile_id,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_profile *fmp;
struct mlx5_flow_meter_profile *old_fmp;
struct mlx5_flow_meter_info *fm;
uint64_t modify_bits = MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CBS |
MLX5_FLOW_METER_OBJ_MODIFY_FIELD_CIR;
int ret;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter is not supported");
/* Meter profile must exist. */
fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
if (fmp == NULL)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
NULL, "Meter profile not found.");
/* Meter object must exist. */
fm = mlx5_flow_meter_find(priv, meter_id, NULL);
if (fm == NULL)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_MTR_ID,
NULL, "Meter not found.");
/* MTR object already set to meter profile id. */
old_fmp = fm->profile;
if (fmp == old_fmp)
return 0;
/* Update the profile. */
fm->profile = fmp;
/* Update meter params in HW (if not disabled). */
if (fm->active_state == MLX5_FLOW_METER_DISABLE)
return 0;
ret = mlx5_flow_meter_action_modify(priv, fm, &fm->profile->srtcm_prm,
modify_bits, fm->active_state, 1);
if (ret) {
fm->profile = old_fmp;
return -rte_mtr_error_set(error, -ret,
RTE_MTR_ERROR_TYPE_MTR_PARAMS,
NULL, "Failed to update meter"
" parameters in hardware.");
}
old_fmp->ref_cnt--;
fmp->ref_cnt++;
return 0;
}
/**
* Callback to update meter stats mask.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] meter_id
* Meter id.
* @param[in] stats_mask
* To be updated stats_mask.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_stats_update(struct rte_eth_dev *dev,
uint32_t meter_id,
uint64_t stats_mask,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_info *fm;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter is not supported");
/* Meter object must exist. */
fm = mlx5_flow_meter_find(priv, meter_id, NULL);
if (fm == NULL)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_MTR_ID,
NULL, "Meter object id not valid.");
if (mlx5_flow_meter_stats_enable_update(dev, fm, stats_mask))
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_MTR_ID,
NULL, "Fail to allocate "
"counter for meter.");
return 0;
}
/**
* Callback to read meter statistics.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] meter_id
* Meter id.
* @param[out] stats
* Pointer to store the statistics.
* @param[out] stats_mask
* Pointer to store the stats_mask.
* @param[in] clear
* Statistic to be cleared after read or not.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_stats_read(struct rte_eth_dev *dev,
uint32_t meter_id,
struct rte_mtr_stats *stats,
uint64_t *stats_mask,
int clear,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_info *fm;
uint64_t pkts;
uint64_t bytes;
int ret = 0;
if (!priv->mtr_en)
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter is not supported");
/* Meter object must exist. */
fm = mlx5_flow_meter_find(priv, meter_id, NULL);
if (fm == NULL)
return -rte_mtr_error_set(error, ENOENT,
RTE_MTR_ERROR_TYPE_MTR_ID,
NULL, "Meter object id not valid.");
*stats_mask = 0;
if (fm->bytes_dropped)
*stats_mask |= RTE_MTR_STATS_N_BYTES_DROPPED;
if (fm->pkts_dropped)
*stats_mask |= RTE_MTR_STATS_N_PKTS_DROPPED;
memset(stats, 0, sizeof(*stats));
if (fm->drop_cnt) {
ret = mlx5_counter_query(dev, fm->drop_cnt, clear, &pkts,
&bytes, NULL);
if (ret)
goto error;
/* If need to read the packets, set it. */
if (fm->pkts_dropped)
stats->n_pkts_dropped = pkts;
/* If need to read the bytes, set it. */
if (fm->bytes_dropped)
stats->n_bytes_dropped = bytes;
}
return 0;
error:
return -rte_mtr_error_set(error, ret, RTE_MTR_ERROR_TYPE_STATS, NULL,
"Failed to read meter drop counters.");
}
static const struct rte_mtr_ops mlx5_flow_mtr_ops = {
.capabilities_get = mlx5_flow_mtr_cap_get,
.meter_profile_add = mlx5_flow_meter_profile_add,
.meter_profile_delete = mlx5_flow_meter_profile_delete,
.meter_policy_validate = mlx5_flow_meter_policy_validate,
.meter_policy_add = mlx5_flow_meter_policy_add,
.meter_policy_delete = mlx5_flow_meter_policy_delete,
.create = mlx5_flow_meter_create,
.destroy = mlx5_flow_meter_destroy,
.meter_enable = mlx5_flow_meter_enable,
.meter_disable = mlx5_flow_meter_disable,
.meter_profile_update = mlx5_flow_meter_profile_update,
.meter_dscp_table_update = NULL,
.stats_update = mlx5_flow_meter_stats_update,
.stats_read = mlx5_flow_meter_stats_read,
};
/**
* Get meter operations.
*
* @param dev
* Pointer to Ethernet device structure.
* @param arg
* Pointer to set the mtr operations.
*
* @return
* Always 0.
*/
int
mlx5_flow_meter_ops_get(struct rte_eth_dev *dev __rte_unused, void *arg)
{
*(const struct rte_mtr_ops **)arg = &mlx5_flow_mtr_ops;
return 0;
}
/**
* Find meter by id.
*
* @param priv
* Pointer to mlx5_priv.
* @param meter_id
* Meter id.
* @param mtr_idx
* Pointer to Meter index.
*
* @return
* Pointer to the meter info found on success, NULL otherwise.
*/
struct mlx5_flow_meter_info *
mlx5_flow_meter_find(struct mlx5_priv *priv, uint32_t meter_id,
uint32_t *mtr_idx)
{
struct mlx5_legacy_flow_meter *legacy_fm;
struct mlx5_legacy_flow_meters *fms = &priv->flow_meters;
struct mlx5_aso_mtr *aso_mtr;
struct mlx5_aso_mtr_pools_mng *pools_mng =
&priv->sh->mtrmng->pools_mng;
union mlx5_l3t_data data;
uint16_t n_valid;
if (priv->sh->meter_aso_en) {
rte_rwlock_read_lock(&pools_mng->resize_mtrwl);
n_valid = pools_mng->n_valid;
rte_rwlock_read_unlock(&pools_mng->resize_mtrwl);
if (!n_valid || !priv->mtr_idx_tbl ||
(mlx5_l3t_get_entry(priv->mtr_idx_tbl, meter_id, &data) ||
!data.dword))
return NULL;
if (mtr_idx)
*mtr_idx = data.dword;
aso_mtr = mlx5_aso_meter_by_idx(priv, data.dword);
/* Remove reference taken by the mlx5_l3t_get_entry. */
mlx5_l3t_clear_entry(priv->mtr_idx_tbl, meter_id);
if (!aso_mtr || aso_mtr->state == ASO_METER_FREE)
return NULL;
return &aso_mtr->fm;
}
TAILQ_FOREACH(legacy_fm, fms, next)
if (meter_id == legacy_fm->fm.meter_id) {
if (mtr_idx)
*mtr_idx = legacy_fm->idx;
return &legacy_fm->fm;
}
return NULL;
}
/**
* Find meter by index.
*
* @param priv
* Pointer to mlx5_priv.
* @param idx
* Meter index.
*
* @return
* Pointer to the meter info found on success, NULL otherwise.
*/
struct mlx5_flow_meter_info *
flow_dv_meter_find_by_idx(struct mlx5_priv *priv, uint32_t idx)
{
struct mlx5_aso_mtr *aso_mtr;
if (priv->sh->meter_aso_en) {
aso_mtr = mlx5_aso_meter_by_idx(priv, idx);
if (!aso_mtr)
return NULL;
return &aso_mtr->fm;
} else {
return mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_MTR], idx);
}
}
/**
* Attach meter to flow.
* Unidirectional Meter creation can only be done
* when flow direction is known, i.e. when calling meter_attach.
*
* @param [in] priv
* Pointer to mlx5 private data.
* @param[in] fm
* Pointer to flow meter.
* @param [in] attr
* Pointer to flow attributes.
* @param [out] error
* Pointer to error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_meter_attach(struct mlx5_priv *priv,
struct mlx5_flow_meter_info *fm,
const struct rte_flow_attr *attr,
struct rte_flow_error *error)
{
int ret = 0;
if (priv->sh->meter_aso_en) {
struct mlx5_aso_mtr *aso_mtr;
aso_mtr = container_of(fm, struct mlx5_aso_mtr, fm);
if (mlx5_aso_mtr_wait(priv->sh, aso_mtr)) {
return rte_flow_error_set(error, ENOENT,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
NULL,
"Timeout in meter configuration");
}
rte_spinlock_lock(&fm->sl);
if (fm->shared || !fm->ref_cnt) {
fm->ref_cnt++;
} else {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter cannot be shared");
ret = -1;
}
rte_spinlock_unlock(&fm->sl);
} else {
rte_spinlock_lock(&fm->sl);
if (fm->meter_action_g) {
if (fm->shared &&
attr->transfer == fm->transfer &&
attr->ingress == fm->ingress &&
attr->egress == fm->egress) {
fm->ref_cnt++;
} else {
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
fm->shared ?
"Meter attr not match." :
"Meter cannot be shared.");
ret = -1;
}
} else {
fm->ingress = attr->ingress;
fm->egress = attr->egress;
fm->transfer = attr->transfer;
fm->ref_cnt = 1;
/* This also creates the meter object. */
fm->meter_action_g = mlx5_flow_meter_action_create(priv,
fm);
if (!fm->meter_action_g) {
fm->ref_cnt = 0;
fm->ingress = 0;
fm->egress = 0;
fm->transfer = 0;
rte_flow_error_set(error, EINVAL,
RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
"Meter action create failed.");
ret = -1;
}
}
rte_spinlock_unlock(&fm->sl);
}
return ret ? -rte_errno : 0;
}
/**
* Detach meter from flow.
*
* @param [in] priv
* Pointer to mlx5 private data.
* @param [in] fm
* Pointer to flow meter.
*/
void
mlx5_flow_meter_detach(struct mlx5_priv *priv,
struct mlx5_flow_meter_info *fm)
{
#ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER
rte_spinlock_lock(&fm->sl);
MLX5_ASSERT(fm->ref_cnt);
if (--fm->ref_cnt == 0 && !priv->sh->meter_aso_en) {
mlx5_glue->destroy_flow_action(fm->meter_action_g);
fm->meter_action_g = NULL;
fm->ingress = 0;
fm->egress = 0;
fm->transfer = 0;
}
rte_spinlock_unlock(&fm->sl);
#else
(void)priv;
(void)fm;
#endif
}
/**
* Flush meter with Rx queue configuration.
*
* @param[in] dev
* Pointer to Ethernet device.
*/
void
mlx5_flow_meter_rxq_flush(struct rte_eth_dev *dev)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_sub_policy *sub_policy;
struct mlx5_flow_meter_policy *mtr_policy;
void *entry;
uint32_t i, policy_idx;
if (!priv->mtr_en)
return;
if (priv->policy_idx_tbl) {
MLX5_L3T_FOREACH(priv->policy_idx_tbl, i, entry) {
policy_idx = *(uint32_t *)entry;
sub_policy = mlx5_ipool_get
(priv->sh->ipool[MLX5_IPOOL_MTR_POLICY],
policy_idx);
if (!sub_policy || !sub_policy->main_policy)
continue;
mtr_policy = sub_policy->main_policy;
if (mtr_policy->is_queue || mtr_policy->is_rss)
mlx5_flow_destroy_sub_policy_with_rxq(dev,
mtr_policy);
}
}
}
/**
* Iterate a meter hierarchy and flush all meters and policies if possible.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[in] fm
* Pointer to flow meter.
* @param[in] mtr_idx
* .Meter's index
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_flush_hierarchy(struct rte_eth_dev *dev,
struct mlx5_flow_meter_info *fm,
uint32_t mtr_idx,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_policy *policy;
uint32_t policy_id;
struct mlx5_flow_meter_info *next_fm;
uint32_t next_mtr_idx;
struct mlx5_flow_meter_policy *next_policy = NULL;
policy = mlx5_flow_meter_policy_find(dev, fm->policy_id, NULL);
MLX5_ASSERT(policy);
while (!fm->ref_cnt && policy->is_hierarchy) {
policy_id = fm->policy_id;
next_fm = mlx5_flow_meter_hierarchy_next_meter(priv, policy, &next_mtr_idx);
if (next_fm) {
next_policy = mlx5_flow_meter_policy_find(dev,
next_fm->policy_id,
NULL);
MLX5_ASSERT(next_policy);
}
if (mlx5_flow_meter_params_flush(dev, fm, mtr_idx))
return -rte_mtr_error_set(error, ENOTSUP,
RTE_MTR_ERROR_TYPE_MTR_ID,
NULL,
"Failed to flush meter.");
if (policy->ref_cnt)
break;
if (__mlx5_flow_meter_policy_delete(dev, policy_id,
policy, error, true))
return -rte_errno;
mlx5_free(policy);
if (!next_fm || !next_policy)
break;
fm = next_fm;
mtr_idx = next_mtr_idx;
policy = next_policy;
}
return 0;
}
/**
* Flush all the hierarchy meters and their policies.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
static int
mlx5_flow_meter_flush_all_hierarchies(struct rte_eth_dev *dev,
struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_flow_meter_info *fm;
struct mlx5_flow_meter_policy *policy;
struct mlx5_flow_meter_sub_policy *sub_policy;
struct mlx5_flow_meter_info *next_fm;
struct mlx5_aso_mtr *aso_mtr;
uint32_t mtr_idx = 0;
uint32_t i, policy_idx;
void *entry;
if (!priv->mtr_idx_tbl || !priv->policy_idx_tbl)
return 0;
MLX5_L3T_FOREACH(priv->mtr_idx_tbl, i, entry) {
mtr_idx = *(uint32_t *)entry;
if (!mtr_idx)
continue;
aso_mtr = mlx5_aso_meter_by_idx(priv, mtr_idx);
fm = &aso_mtr->fm;
if (fm->ref_cnt || fm->def_policy)
continue;
if (mlx5_flow_meter_flush_hierarchy(dev, fm, mtr_idx, error))
return -rte_errno;
}
MLX5_L3T_FOREACH(priv->policy_idx_tbl, i, entry) {
policy_idx = *(uint32_t *)entry;
sub_policy = mlx5_ipool_get
(priv->sh->ipool[MLX5_IPOOL_MTR_POLICY],
policy_idx);
if (!sub_policy)
return -rte_mtr_error_set(error,
EINVAL,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "Meter policy invalid.");
policy = sub_policy->main_policy;
if (!policy || !policy->is_hierarchy || policy->ref_cnt)
continue;
next_fm = mlx5_flow_meter_hierarchy_next_meter(priv, policy, &mtr_idx);
if (__mlx5_flow_meter_policy_delete(dev, i, policy,
error, true))
return -rte_mtr_error_set(error,
EINVAL,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "Meter policy invalid.");
mlx5_free(policy);
if (!next_fm || next_fm->ref_cnt || next_fm->def_policy)
continue;
if (mlx5_flow_meter_flush_hierarchy(dev, next_fm,
mtr_idx, error))
return -rte_errno;
}
return 0;
}
/**
* Flush meter configuration.
*
* @param[in] dev
* Pointer to Ethernet device.
* @param[out] error
* Pointer to rte meter error structure.
*
* @return
* 0 on success, a negative errno value otherwise and rte_errno is set.
*/
int
mlx5_flow_meter_flush(struct rte_eth_dev *dev, struct rte_mtr_error *error)
{
struct mlx5_priv *priv = dev->data->dev_private;
struct mlx5_legacy_flow_meters *fms = &priv->flow_meters;
struct mlx5_flow_meter_profile *fmp;
struct mlx5_legacy_flow_meter *legacy_fm;
struct mlx5_flow_meter_info *fm;
struct mlx5_flow_meter_sub_policy *sub_policy;
void *tmp;
uint32_t i, mtr_idx, policy_idx;
void *entry;
struct mlx5_aso_mtr *aso_mtr;
if (!priv->mtr_en)
return 0;
if (priv->sh->meter_aso_en) {
if (mlx5_flow_meter_flush_all_hierarchies(dev, error))
return -rte_errno;
if (priv->mtr_idx_tbl) {
MLX5_L3T_FOREACH(priv->mtr_idx_tbl, i, entry) {
mtr_idx = *(uint32_t *)entry;
if (mtr_idx) {
aso_mtr =
mlx5_aso_meter_by_idx(priv, mtr_idx);
fm = &aso_mtr->fm;
(void)mlx5_flow_meter_params_flush(dev,
fm, mtr_idx);
}
}
mlx5_l3t_destroy(priv->mtr_idx_tbl);
priv->mtr_idx_tbl = NULL;
}
} else {
RTE_TAILQ_FOREACH_SAFE(legacy_fm, fms, next, tmp) {
fm = &legacy_fm->fm;
if (mlx5_flow_meter_params_flush(dev, fm, 0))
return -rte_mtr_error_set(error, EINVAL,
RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
NULL, "MTR object meter profile invalid.");
}
}
if (priv->policy_idx_tbl) {
MLX5_L3T_FOREACH(priv->policy_idx_tbl, i, entry) {
policy_idx = *(uint32_t *)entry;
sub_policy = mlx5_ipool_get
(priv->sh->ipool[MLX5_IPOOL_MTR_POLICY],
policy_idx);
if (!sub_policy)
return -rte_mtr_error_set(error,
EINVAL,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "MTR object "
"meter policy invalid.");
if (__mlx5_flow_meter_policy_delete(dev, i,
sub_policy->main_policy,
error, true))
return -rte_mtr_error_set(error,
EINVAL,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "MTR object "
"meter policy invalid.");
mlx5_free(sub_policy->main_policy);
}
mlx5_l3t_destroy(priv->policy_idx_tbl);
priv->policy_idx_tbl = NULL;
}
if (priv->mtr_profile_tbl) {
MLX5_L3T_FOREACH(priv->mtr_profile_tbl, i, entry) {
fmp = entry;
if (mlx5_flow_meter_profile_delete(dev, fmp->id,
error))
return -rte_mtr_error_set(error, EINVAL,
RTE_MTR_ERROR_TYPE_METER_POLICY_ID,
NULL, "Fail to destroy "
"meter profile.");
}
mlx5_l3t_destroy(priv->mtr_profile_tbl);
priv->mtr_profile_tbl = NULL;
}
/* Delete default policy table. */
mlx5_flow_destroy_def_policy(dev);
if (priv->sh->refcnt == 1)
mlx5_flow_destroy_mtr_drop_tbls(dev);
return 0;
}
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