net/mlx5: fix meter statistics
[dpdk.git] / drivers / net / mlx5 / mlx5_flow_meter.c
index c4d28b2..7f7693b 100644 (file)
@@ -9,6 +9,9 @@
 #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"
 
@@ -53,8 +56,8 @@ mlx5_flow_meter_action_create(struct mlx5_priv *priv,
        MLX5_SET(flow_meter_parameters,
                 attr, ebs_mantissa, srtcm->ebs_mantissa);
        mtr_init.next_table =
-               fm->attr.transfer ? fm->mfts->transfer.tbl->obj :
-                   fm->attr.egress ? fm->mfts->egress.tbl->obj :
+               fm->transfer ? fm->mfts->transfer.tbl->obj :
+                   fm->egress ? fm->mfts->egress.tbl->obj :
                                       fm->mfts->ingress.tbl->obj;
        mtr_init.reg_c_index = priv->mtr_color_reg - REG_C_0;
        mtr_init.flow_meter_parameter = fm->mfts->fmp;
@@ -133,7 +136,7 @@ mlx5_flow_meter_profile_validate(struct rte_eth_dev *dev,
                                          NULL,
                                          "Meter profile already exists.");
        if (profile->alg == RTE_MTR_SRTCM_RFC2697) {
-               if (priv->config.hca_attr.qos.srtcm_sup) {
+               if (priv->config.hca_attr.qos.flow_meter_old) {
                        /* Verify support for flow meter parameters. */
                        if (profile->srtcm_rfc2697.cir > 0 &&
                            profile->srtcm_rfc2697.cir <= MLX5_SRTCM_CIR_MAX &&
@@ -301,7 +304,7 @@ mlx5_flow_mtr_cap_get(struct rte_eth_dev *dev,
        if (!priv->mtr_en)
                return -rte_mtr_error_set(error, ENOTSUP,
                                          RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
-                                         "Meter is not support");
+                                         "Meter is not supported");
        memset(cap, 0, sizeof(*cap));
        cap->n_max = 1 << qattr->log_max_flow_meter;
        cap->n_shared_max = cap->n_max;
@@ -310,7 +313,7 @@ mlx5_flow_mtr_cap_get(struct rte_eth_dev *dev,
        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->srtcm_sup ? cap->n_max : 0;
+       cap->meter_srtcm_rfc2697_n_max = qattr->flow_meter_old ? cap->n_max : 0;
        cap->meter_rate_max = 1ULL << 40; /* 1 Tera tokens per sec. */
        cap->policer_action_drop_supported = 1;
        cap->stats_mask = RTE_MTR_STATS_N_BYTES_DROPPED |
@@ -347,15 +350,15 @@ mlx5_flow_meter_profile_add(struct rte_eth_dev *dev,
        if (!priv->mtr_en)
                return -rte_mtr_error_set(error, ENOTSUP,
                                          RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
-                                         "Meter is not support");
+                                         "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 = rte_calloc(__func__, 1, sizeof(struct mlx5_flow_meter_profile),
-                        RTE_CACHE_LINE_SIZE);
+       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,
@@ -372,7 +375,7 @@ mlx5_flow_meter_profile_add(struct rte_eth_dev *dev,
        TAILQ_INSERT_TAIL(fmps, fmp, next);
        return 0;
 error:
-       rte_free(fmp);
+       mlx5_free(fmp);
        return ret;
 }
 
@@ -400,22 +403,22 @@ mlx5_flow_meter_profile_delete(struct rte_eth_dev *dev,
        if (!priv->mtr_en)
                return -rte_mtr_error_set(error, ENOTSUP,
                                          RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
-                                         "Meter is not support");
+                                         "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 invalid.");
+                                         "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 in use.");
+                                         NULL, "Meter profile is in use.");
        /* Remove from list. */
        TAILQ_REMOVE(&priv->flow_meter_profiles, fmp, next);
-       rte_free(fmp);
+       mlx5_free(fmp);
        return 0;
 }
 
@@ -471,6 +474,12 @@ mlx5_flow_meter_validate(struct mlx5_priv *priv, uint32_t meter_id,
                                               MTR_POLICER_ACTION_COLOR_RED };
        int i;
 
+       /* 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,
@@ -627,13 +636,23 @@ mlx5_flow_meter_create(struct rte_eth_dev *dev, uint32_t meter_id,
                                .egress = 1,
                                .transfer = priv->config.dv_esw_en ? 1 : 0,
                        };
+       struct mlx5_indexed_pool_config flow_ipool_cfg = {
+               .size = 0,
+               .trunk_size = 64,
+               .need_lock = 1,
+               .type = "mlx5_flow_mtr_flow_id_pool",
+       };
        int ret;
        unsigned int i;
+       uint32_t idx = 0;
+       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 support");
+                                         "Meter is not supported");
        /* Validate the parameters. */
        ret = mlx5_flow_meter_validate(priv, meter_id, params, error);
        if (ret)
@@ -645,26 +664,35 @@ mlx5_flow_meter_create(struct rte_eth_dev *dev, uint32_t meter_id,
                                          RTE_MTR_ERROR_TYPE_METER_PROFILE_ID,
                                          NULL, "Meter profile id not valid.");
        /* Allocate the flow meter memory. */
-       fm = rte_calloc(__func__, 1,
-                       sizeof(struct mlx5_flow_meter), RTE_CACHE_LINE_SIZE);
+       fm = mlx5_ipool_zmalloc(priv->sh->ipool[MLX5_IPOOL_MTR], &idx);
        if (fm == NULL)
                return -rte_mtr_error_set(error, ENOMEM,
                                          RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
                                          "Memory alloc failed for meter.");
+       mtr_id_bits = MLX5_REG_BITS - __builtin_clz(idx);
+       if ((mtr_id_bits + priv->max_mtr_flow_bits) > mtr_reg_bits) {
+               DRV_LOG(ERR, "Meter number exceeds max limit.");
+               goto error;
+       }
+       if (mtr_id_bits > priv->max_mtr_bits)
+               priv->max_mtr_bits = mtr_id_bits;
+       fm->idx = idx;
        /* Fill the flow meter parameters. */
        fm->meter_id = meter_id;
        fm->profile = fmp;
-       fm->params = *params;
+       memcpy(fm->action, params->action, sizeof(params->action));
+       fm->stats_mask = params->stats_mask;
+
        /* Alloc policer counters. */
        for (i = 0; i < RTE_DIM(fm->policer_stats.cnt); i++) {
                fm->policer_stats.cnt[i] = mlx5_counter_alloc(dev);
                if (!fm->policer_stats.cnt[i])
                        goto error;
        }
-       fm->mfts = mlx5_flow_create_mtr_tbls(dev, fm);
+       fm->mfts = mlx5_flow_create_mtr_tbls(dev);
        if (!fm->mfts)
                goto error;
-       ret = mlx5_flow_create_policer_rules(dev, fm, &attr);
+       ret = mlx5_flow_prepare_policer_rules(dev, fm, &attr);
        if (ret)
                goto error;
        /* Add to the flow meter list. */
@@ -673,6 +701,10 @@ mlx5_flow_meter_create(struct rte_eth_dev *dev, uint32_t meter_id,
        fm->shared = !!shared;
        fm->policer_stats.stats_mask = params->stats_mask;
        fm->profile->ref_cnt++;
+       fm->flow_ipool = mlx5_ipool_create(&flow_ipool_cfg);
+       if (!fm->flow_ipool)
+               goto error;
+       rte_spinlock_init(&fm->sl);
        return 0;
 error:
        mlx5_flow_destroy_policer_rules(dev, fm, &attr);
@@ -681,7 +713,7 @@ error:
        for (i = 0; i < RTE_DIM(fm->policer_stats.cnt); i++)
                if (fm->policer_stats.cnt[i])
                        mlx5_counter_free(dev, fm->policer_stats.cnt[i]);
-       rte_free(fm);
+       mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR], idx);
        return -rte_mtr_error_set(error, -ret,
                                  RTE_MTR_ERROR_TYPE_UNSPECIFIED,
                                  NULL, "Failed to create devx meter.");
@@ -718,7 +750,7 @@ mlx5_flow_meter_destroy(struct rte_eth_dev *dev, uint32_t meter_id,
        if (!priv->mtr_en)
                return -rte_mtr_error_set(error, ENOTSUP,
                                          RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
-                                         "Meter is not support");
+                                         "Meter is not supported");
        /* Meter object must exist. */
        fm = mlx5_flow_meter_find(priv, meter_id);
        if (fm == NULL)
@@ -732,7 +764,7 @@ mlx5_flow_meter_destroy(struct rte_eth_dev *dev, uint32_t meter_id,
                                          NULL, "Meter object is being used.");
        /* Get the meter profile. */
        fmp = fm->profile;
-       RTE_ASSERT(fmp);
+       MLX5_ASSERT(fmp);
        /* Update dependencies. */
        fmp->ref_cnt--;
        /* Remove from the flow meter list. */
@@ -742,9 +774,11 @@ mlx5_flow_meter_destroy(struct rte_eth_dev *dev, uint32_t meter_id,
                if (fm->policer_stats.cnt[i])
                        mlx5_counter_free(dev, fm->policer_stats.cnt[i]);
        /* Free meter flow table */
+       if (fm->flow_ipool)
+               mlx5_ipool_destroy(fm->flow_ipool);
        mlx5_flow_destroy_policer_rules(dev, fm, &attr);
        mlx5_flow_destroy_mtr_tbls(dev, fm->mfts);
-       rte_free(fm);
+       mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR], fm->idx);
        return 0;
 }
 
@@ -823,7 +857,7 @@ mlx5_flow_meter_enable(struct rte_eth_dev *dev,
        if (!priv->mtr_en)
                return -rte_mtr_error_set(error, ENOTSUP,
                                          RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
-                                         "Meter is not support");
+                                         "Meter is not supported");
        /* Meter object must exist. */
        fm = mlx5_flow_meter_find(priv, meter_id);
        if (fm == NULL)
@@ -864,7 +898,7 @@ mlx5_flow_meter_disable(struct rte_eth_dev *dev,
        if (!priv->mtr_en)
                return -rte_mtr_error_set(error, ENOTSUP,
                                          RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
-                                         "Meter is not support");
+                                         "Meter is not supported");
        /* Meter object must exist. */
        fm = mlx5_flow_meter_find(priv, meter_id);
        if (fm == NULL)
@@ -912,7 +946,7 @@ mlx5_flow_meter_profile_update(struct rte_eth_dev *dev,
        if (!priv->mtr_en)
                return -rte_mtr_error_set(error, ENOTSUP,
                                          RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
-                                         "Meter is not support");
+                                         "Meter is not supported");
        /* Meter profile must exist. */
        fmp = mlx5_flow_meter_profile_find(priv, meter_profile_id);
        if (fmp == NULL)
@@ -975,7 +1009,7 @@ mlx5_flow_meter_stats_update(struct rte_eth_dev *dev,
        if (!priv->mtr_en)
                return -rte_mtr_error_set(error, ENOTSUP,
                                          RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
-                                         "Meter is not support");
+                                         "Meter is not supported");
        /* Meter object must exist. */
        fm = mlx5_flow_meter_find(priv, meter_id);
        if (fm == NULL)
@@ -1032,7 +1066,7 @@ mlx5_flow_meter_stats_read(struct rte_eth_dev *dev,
        if (!priv->mtr_en)
                return -rte_mtr_error_set(error, ENOTSUP,
                                          RTE_MTR_ERROR_TYPE_UNSPECIFIED, NULL,
-                                         "Meter is not support");
+                                         "Meter is not supported");
        /* Meter object must exist. */
        fm = mlx5_flow_meter_find(priv, meter_id);
        if (fm == NULL)
@@ -1047,7 +1081,7 @@ mlx5_flow_meter_stats_read(struct rte_eth_dev *dev,
                                                 &bytes);
                        if (ret)
                                goto error;
-                       if (fm->params.action[i] == MTR_POLICER_ACTION_DROP) {
+                       if (fm->action[i] == MTR_POLICER_ACTION_DROP) {
                                pkts_dropped += pkts;
                                bytes_dropped += bytes;
                        }
@@ -1146,62 +1180,58 @@ mlx5_flow_meter_find(struct mlx5_priv *priv, uint32_t meter_id)
  *
  * @param [in] priv
  *  Pointer to mlx5 private data.
- * @param [in] meter_id
- *  Flow meter id.
+ * @param[in] fm
+ *   Pointer to flow meter.
  * @param [in] attr
  *  Pointer to flow attributes.
  * @param [out] error
  *  Pointer to error structure.
  *
- * @return the flow meter pointer, NULL otherwise.
+ * @return
+ *   0 on success, a negative errno value otherwise and rte_errno is set.
  */
-struct mlx5_flow_meter *
-mlx5_flow_meter_attach(struct mlx5_priv *priv, uint32_t meter_id,
+int
+mlx5_flow_meter_attach(struct mlx5_priv *priv,
+                      struct mlx5_flow_meter *fm,
                       const struct rte_flow_attr *attr,
                       struct rte_flow_error *error)
 {
-       struct mlx5_flow_meter *fm;
+       int ret = 0;
 
-       fm = mlx5_flow_meter_find(priv, meter_id);
-       if (fm == NULL) {
-               rte_flow_error_set(error, ENOENT,
-                                  RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
-                                  "Meter object id not valid");
-               goto error;
-       }
-       if (!fm->shared && fm->ref_cnt) {
-               DRV_LOG(ERR, "Cannot share a non-shared meter.");
-               rte_flow_error_set(error, EINVAL,
-                                 RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
-                                 "Meter can't be shared");
-               goto error;
-       }
-       if (!fm->ref_cnt++) {
-               RTE_ASSERT(!fm->mfts->meter_action);
-               fm->attr = *attr;
+       rte_spinlock_lock(&fm->sl);
+       if (fm->mfts->meter_action) {
+               if (fm->shared &&
+                   attr->transfer == fm->transfer &&
+                   attr->ingress == fm->ingress &&
+                   attr->egress == fm->egress)
+                       fm->ref_cnt++;
+               else
+                       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->mfts->meter_action = mlx5_flow_meter_action_create(priv,
                                                                       fm);
-               if (!fm->mfts->meter_action)
-                       goto error_detach;
-       } else {
-               RTE_ASSERT(fm->mfts->meter_action);
-               if (attr->transfer != fm->attr.transfer ||
-                   attr->ingress != fm->attr.ingress ||
-                   attr->egress != fm->attr.egress) {
-                       DRV_LOG(ERR, "meter I/O attributes do not "
-                               "match flow I/O attributes.");
-                       goto error_detach;
+               if (!fm->mfts->meter_action) {
+                       fm->ref_cnt = 0;
+                       fm->ingress = 0;
+                       fm->egress = 0;
+                       fm->transfer = 0;
+                       ret = -1;
+                       DRV_LOG(ERR, "Meter action create failed.");
                }
        }
-       return fm;
-error_detach:
-       mlx5_flow_meter_detach(fm);
-       rte_flow_error_set(error, EINVAL, RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
-                         fm->mfts->meter_action ? "Meter attr not match" :
-                         "Meter action create failed");
-error:
-       return NULL;
+       rte_spinlock_unlock(&fm->sl);
+       if (ret)
+               rte_flow_error_set(error, EINVAL,
+                                  RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL,
+                                  fm->mfts->meter_action ?
+                                  "Meter attr not match" :
+                                  "Meter action create failed");
+       return ret ? -rte_errno : 0;
 }
 
 /**
@@ -1213,15 +1243,20 @@ error:
 void
 mlx5_flow_meter_detach(struct mlx5_flow_meter *fm)
 {
-       const struct rte_flow_attr attr = { 0 };
-
-       RTE_ASSERT(fm->ref_cnt);
-       if (--fm->ref_cnt)
-               return;
-       if (fm->mfts->meter_action)
+#ifdef HAVE_MLX5_DR_CREATE_ACTION_FLOW_METER
+       rte_spinlock_lock(&fm->sl);
+       MLX5_ASSERT(fm->ref_cnt);
+       if (--fm->ref_cnt == 0) {
                mlx5_glue->destroy_flow_action(fm->mfts->meter_action);
-       fm->mfts->meter_action = NULL;
-       fm->attr = attr;
+               fm->mfts->meter_action = NULL;
+               fm->ingress = 0;
+               fm->egress = 0;
+               fm->transfer = 0;
+       }
+       rte_spinlock_unlock(&fm->sl);
+#else
+       (void)fm;
+#endif
 }
 
 /**
@@ -1253,7 +1288,7 @@ mlx5_flow_meter_flush(struct rte_eth_dev *dev, struct rte_mtr_error *error)
 
        TAILQ_FOREACH_SAFE(fm, fms, next, tmp) {
                /* Meter object must not have any owner. */
-               RTE_ASSERT(!fm->ref_cnt);
+               MLX5_ASSERT(!fm->ref_cnt);
                /* Get meter profile. */
                fmp = fm->profile;
                if (fmp == NULL)
@@ -1272,14 +1307,14 @@ mlx5_flow_meter_flush(struct rte_eth_dev *dev, struct rte_mtr_error *error)
                /* Free meter flow table. */
                mlx5_flow_destroy_policer_rules(dev, fm, &attr);
                mlx5_flow_destroy_mtr_tbls(dev, fm->mfts);
-               rte_free(fm);
+               mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR], fm->idx);
        }
        TAILQ_FOREACH_SAFE(fmp, fmps, next, tmp) {
                /* Check unused. */
-               RTE_ASSERT(!fmp->ref_cnt);
+               MLX5_ASSERT(!fmp->ref_cnt);
                /* Remove from list. */
                TAILQ_REMOVE(&priv->flow_meter_profiles, fmp, next);
-               rte_free(fmp);
+               mlx5_free(fmp);
        }
        return 0;
 }