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numam-dpdk/drivers/net/mlx5/mlx5_flow_meter.c
Haifei Luo 9b57df5575 net/mlx5: refactor getting counter action pointer 
Previously API flow_dv_query_count_ptr is defined to get counter's
action pointer. This DV function is directly called and the better
way is by the callback.

Add one arg in API mlx5_counter_query and the related callback
counter_query. The added arg is for counter's action pointer.

Signed-off-by: Haifei Luo <haifeil@nvidia.com>
Acked-by: Viacheslav Ovsiienko <viacheslavo@nvidia.com>
2022-02-23 15:57:34 +01:00

2231 lines
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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"
/**
* 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 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) {
next_fm = mlx5_flow_meter_find(priv,
next_policy->act_cnt[RTE_COLOR_GREEN].next_mtr_id, NULL);
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)
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) {
ret = mlx5_glue->dv_modify_flow_action_meter
(fm->meter_action, &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 = 1;
fm->shared = !!shared;
__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;
}
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) {
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 = mlx5_flow_meter_action_create(priv,
fm);
if (!fm->meter_action) {
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);
fm->meter_action = 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_find(priv,
policy->act_cnt[RTE_COLOR_GREEN].next_mtr_id,
&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_find(priv,
policy->act_cnt[RTE_COLOR_GREEN].next_mtr_id,
&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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