+/**
+ * Destroy the meter table set.
+ * Lock free, (mutex should be acquired by caller).
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] tbl
+ * Pointer to the meter table set.
+ *
+ * @return
+ * Always 0.
+ */
+static int
+flow_dv_destroy_mtr_tbl(struct rte_eth_dev *dev,
+ struct mlx5_meter_domains_infos *tbl)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_meter_domains_infos *mtd =
+ (struct mlx5_meter_domains_infos *)tbl;
+
+ if (!mtd || !priv->config.dv_flow_en)
+ return 0;
+ if (mtd->ingress.policer_rules[RTE_MTR_DROPPED])
+ claim_zero(mlx5_flow_os_destroy_flow
+ (mtd->ingress.policer_rules[RTE_MTR_DROPPED]));
+ if (mtd->egress.policer_rules[RTE_MTR_DROPPED])
+ claim_zero(mlx5_flow_os_destroy_flow
+ (mtd->egress.policer_rules[RTE_MTR_DROPPED]));
+ if (mtd->transfer.policer_rules[RTE_MTR_DROPPED])
+ claim_zero(mlx5_flow_os_destroy_flow
+ (mtd->transfer.policer_rules[RTE_MTR_DROPPED]));
+ if (mtd->egress.color_matcher)
+ claim_zero(mlx5_flow_os_destroy_flow_matcher
+ (mtd->egress.color_matcher));
+ if (mtd->egress.any_matcher)
+ claim_zero(mlx5_flow_os_destroy_flow_matcher
+ (mtd->egress.any_matcher));
+ if (mtd->egress.tbl)
+ flow_dv_tbl_resource_release(dev, mtd->egress.tbl);
+ if (mtd->egress.sfx_tbl)
+ flow_dv_tbl_resource_release(dev, mtd->egress.sfx_tbl);
+ if (mtd->ingress.color_matcher)
+ claim_zero(mlx5_flow_os_destroy_flow_matcher
+ (mtd->ingress.color_matcher));
+ if (mtd->ingress.any_matcher)
+ claim_zero(mlx5_flow_os_destroy_flow_matcher
+ (mtd->ingress.any_matcher));
+ if (mtd->ingress.tbl)
+ flow_dv_tbl_resource_release(dev, mtd->ingress.tbl);
+ if (mtd->ingress.sfx_tbl)
+ flow_dv_tbl_resource_release(dev, mtd->ingress.sfx_tbl);
+ if (mtd->transfer.color_matcher)
+ claim_zero(mlx5_flow_os_destroy_flow_matcher
+ (mtd->transfer.color_matcher));
+ if (mtd->transfer.any_matcher)
+ claim_zero(mlx5_flow_os_destroy_flow_matcher
+ (mtd->transfer.any_matcher));
+ if (mtd->transfer.tbl)
+ flow_dv_tbl_resource_release(dev, mtd->transfer.tbl);
+ if (mtd->transfer.sfx_tbl)
+ flow_dv_tbl_resource_release(dev, mtd->transfer.sfx_tbl);
+ if (mtd->drop_actn)
+ claim_zero(mlx5_flow_os_destroy_flow_action(mtd->drop_actn));
+ mlx5_free(mtd);
+ return 0;
+}
+
+/* Number of meter flow actions, count and jump or count and drop. */
+#define METER_ACTIONS 2
+
+/**
+ * Create specify domain meter table and suffix table.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in,out] mtb
+ * Pointer to DV meter table set.
+ * @param[in] egress
+ * Table attribute.
+ * @param[in] transfer
+ * Table attribute.
+ * @param[in] color_reg_c_idx
+ * Reg C index for color match.
+ *
+ * @return
+ * 0 on success, -1 otherwise and rte_errno is set.
+ */
+static int
+flow_dv_prepare_mtr_tables(struct rte_eth_dev *dev,
+ struct mlx5_meter_domains_infos *mtb,
+ uint8_t egress, uint8_t transfer,
+ uint32_t color_reg_c_idx)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_dev_ctx_shared *sh = priv->sh;
+ struct mlx5_flow_dv_match_params mask = {
+ .size = sizeof(mask.buf),
+ };
+ struct mlx5_flow_dv_match_params value = {
+ .size = sizeof(value.buf),
+ };
+ struct mlx5dv_flow_matcher_attr dv_attr = {
+ .type = IBV_FLOW_ATTR_NORMAL,
+ .priority = 0,
+ .match_criteria_enable = 0,
+ .match_mask = (void *)&mask,
+ };
+ void *actions[METER_ACTIONS];
+ struct mlx5_meter_domain_info *dtb;
+ struct rte_flow_error error;
+ int i = 0;
+ int ret;
+
+ if (transfer)
+ dtb = &mtb->transfer;
+ else if (egress)
+ dtb = &mtb->egress;
+ else
+ dtb = &mtb->ingress;
+ /* Create the meter table with METER level. */
+ dtb->tbl = flow_dv_tbl_resource_get(dev, MLX5_FLOW_TABLE_LEVEL_METER,
+ egress, transfer, &error);
+ if (!dtb->tbl) {
+ DRV_LOG(ERR, "Failed to create meter policer table.");
+ return -1;
+ }
+ /* Create the meter suffix table with SUFFIX level. */
+ dtb->sfx_tbl = flow_dv_tbl_resource_get(dev,
+ MLX5_FLOW_TABLE_LEVEL_SUFFIX,
+ egress, transfer, &error);
+ if (!dtb->sfx_tbl) {
+ DRV_LOG(ERR, "Failed to create meter suffix table.");
+ return -1;
+ }
+ /* Create matchers, Any and Color. */
+ dv_attr.priority = 3;
+ dv_attr.match_criteria_enable = 0;
+ ret = mlx5_flow_os_create_flow_matcher(sh->ctx, &dv_attr, dtb->tbl->obj,
+ &dtb->any_matcher);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to create meter"
+ " policer default matcher.");
+ goto error_exit;
+ }
+ dv_attr.priority = 0;
+ dv_attr.match_criteria_enable =
+ 1 << MLX5_MATCH_CRITERIA_ENABLE_MISC2_BIT;
+ flow_dv_match_meta_reg(mask.buf, value.buf, color_reg_c_idx,
+ rte_col_2_mlx5_col(RTE_COLORS), UINT8_MAX);
+ ret = mlx5_flow_os_create_flow_matcher(sh->ctx, &dv_attr, dtb->tbl->obj,
+ &dtb->color_matcher);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to create meter policer color matcher.");
+ goto error_exit;
+ }
+ if (mtb->count_actns[RTE_MTR_DROPPED])
+ actions[i++] = mtb->count_actns[RTE_MTR_DROPPED];
+ actions[i++] = mtb->drop_actn;
+ /* Default rule: lowest priority, match any, actions: drop. */
+ ret = mlx5_flow_os_create_flow(dtb->any_matcher, (void *)&value, i,
+ actions,
+ &dtb->policer_rules[RTE_MTR_DROPPED]);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to create meter policer drop rule.");
+ goto error_exit;
+ }
+ return 0;
+error_exit:
+ return -1;
+}
+
+/**
+ * Create the needed meter and suffix tables.
+ * Lock free, (mutex should be acquired by caller).
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] fm
+ * Pointer to the flow meter.
+ *
+ * @return
+ * Pointer to table set on success, NULL otherwise and rte_errno is set.
+ */
+static struct mlx5_meter_domains_infos *
+flow_dv_create_mtr_tbl(struct rte_eth_dev *dev,
+ const struct mlx5_flow_meter *fm)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_meter_domains_infos *mtb;
+ int ret;
+ int i;
+
+ if (!priv->mtr_en) {
+ rte_errno = ENOTSUP;
+ return NULL;
+ }
+ mtb = mlx5_malloc(MLX5_MEM_ZERO, sizeof(*mtb), 0, SOCKET_ID_ANY);
+ if (!mtb) {
+ DRV_LOG(ERR, "Failed to allocate memory for meter.");
+ return NULL;
+ }
+ /* Create meter count actions */
+ for (i = 0; i <= RTE_MTR_DROPPED; i++) {
+ struct mlx5_flow_counter *cnt;
+ if (!fm->policer_stats.cnt[i])
+ continue;
+ cnt = flow_dv_counter_get_by_idx(dev,
+ fm->policer_stats.cnt[i], NULL);
+ mtb->count_actns[i] = cnt->action;
+ }
+ /* Create drop action. */
+ ret = mlx5_flow_os_create_flow_action_drop(&mtb->drop_actn);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to create drop action.");
+ goto error_exit;
+ }
+ /* Egress meter table. */
+ ret = flow_dv_prepare_mtr_tables(dev, mtb, 1, 0, priv->mtr_color_reg);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to prepare egress meter table.");
+ goto error_exit;
+ }
+ /* Ingress meter table. */
+ ret = flow_dv_prepare_mtr_tables(dev, mtb, 0, 0, priv->mtr_color_reg);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to prepare ingress meter table.");
+ goto error_exit;
+ }
+ /* FDB meter table. */
+ if (priv->config.dv_esw_en) {
+ ret = flow_dv_prepare_mtr_tables(dev, mtb, 0, 1,
+ priv->mtr_color_reg);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to prepare fdb meter table.");
+ goto error_exit;
+ }
+ }
+ return mtb;
+error_exit:
+ flow_dv_destroy_mtr_tbl(dev, mtb);
+ return NULL;
+}
+
+/**
+ * Destroy domain policer rule.
+ *
+ * @param[in] dt
+ * Pointer to domain table.
+ */
+static void
+flow_dv_destroy_domain_policer_rule(struct mlx5_meter_domain_info *dt)
+{
+ int i;
+
+ for (i = 0; i < RTE_MTR_DROPPED; i++) {
+ if (dt->policer_rules[i]) {
+ claim_zero(mlx5_flow_os_destroy_flow
+ (dt->policer_rules[i]));
+ dt->policer_rules[i] = NULL;
+ }
+ }
+ if (dt->jump_actn) {
+ claim_zero(mlx5_flow_os_destroy_flow_action(dt->jump_actn));
+ dt->jump_actn = NULL;
+ }
+}
+
+/**
+ * Destroy policer rules.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] fm
+ * Pointer to flow meter structure.
+ * @param[in] attr
+ * Pointer to flow attributes.
+ *
+ * @return
+ * Always 0.
+ */
+static int
+flow_dv_destroy_policer_rules(struct rte_eth_dev *dev __rte_unused,
+ const struct mlx5_flow_meter *fm,
+ const struct rte_flow_attr *attr)
+{
+ struct mlx5_meter_domains_infos *mtb = fm ? fm->mfts : NULL;
+
+ if (!mtb)
+ return 0;
+ if (attr->egress)
+ flow_dv_destroy_domain_policer_rule(&mtb->egress);
+ if (attr->ingress)
+ flow_dv_destroy_domain_policer_rule(&mtb->ingress);
+ if (attr->transfer)
+ flow_dv_destroy_domain_policer_rule(&mtb->transfer);
+ return 0;
+}
+
+/**
+ * Create specify domain meter policer rule.
+ *
+ * @param[in] fm
+ * Pointer to flow meter structure.
+ * @param[in] mtb
+ * Pointer to DV meter table set.
+ * @param[in] mtr_reg_c
+ * Color match REG_C.
+ *
+ * @return
+ * 0 on success, -1 otherwise.
+ */
+static int
+flow_dv_create_policer_forward_rule(struct mlx5_flow_meter *fm,
+ struct mlx5_meter_domain_info *dtb,
+ uint8_t mtr_reg_c)
+{
+ struct mlx5_flow_dv_match_params matcher = {
+ .size = sizeof(matcher.buf),
+ };
+ struct mlx5_flow_dv_match_params value = {
+ .size = sizeof(value.buf),
+ };
+ struct mlx5_meter_domains_infos *mtb = fm->mfts;
+ void *actions[METER_ACTIONS];
+ int i;
+ int ret = 0;
+
+ /* Create jump action. */
+ if (!dtb->jump_actn)
+ ret = mlx5_flow_os_create_flow_action_dest_flow_tbl
+ (dtb->sfx_tbl->obj, &dtb->jump_actn);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to create policer jump action.");
+ goto error;
+ }
+ for (i = 0; i < RTE_MTR_DROPPED; i++) {
+ int j = 0;
+
+ flow_dv_match_meta_reg(matcher.buf, value.buf, mtr_reg_c,
+ rte_col_2_mlx5_col(i), UINT8_MAX);
+ if (mtb->count_actns[i])
+ actions[j++] = mtb->count_actns[i];
+ if (fm->action[i] == MTR_POLICER_ACTION_DROP)
+ actions[j++] = mtb->drop_actn;
+ else
+ actions[j++] = dtb->jump_actn;
+ ret = mlx5_flow_os_create_flow(dtb->color_matcher,
+ (void *)&value, j, actions,
+ &dtb->policer_rules[i]);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to create policer rule.");
+ goto error;
+ }
+ }
+ return 0;
+error:
+ rte_errno = errno;
+ return -1;
+}
+
+/**
+ * Create policer rules.
+ *
+ * @param[in] dev
+ * Pointer to Ethernet device.
+ * @param[in] fm
+ * Pointer to flow meter structure.
+ * @param[in] attr
+ * Pointer to flow attributes.
+ *
+ * @return
+ * 0 on success, -1 otherwise.
+ */
+static int
+flow_dv_create_policer_rules(struct rte_eth_dev *dev,
+ struct mlx5_flow_meter *fm,
+ const struct rte_flow_attr *attr)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_meter_domains_infos *mtb = fm->mfts;
+ int ret;
+
+ if (attr->egress) {
+ ret = flow_dv_create_policer_forward_rule(fm, &mtb->egress,
+ priv->mtr_color_reg);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to create egress policer.");
+ goto error;
+ }
+ }
+ if (attr->ingress) {
+ ret = flow_dv_create_policer_forward_rule(fm, &mtb->ingress,
+ priv->mtr_color_reg);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to create ingress policer.");
+ goto error;
+ }
+ }
+ if (attr->transfer) {
+ ret = flow_dv_create_policer_forward_rule(fm, &mtb->transfer,
+ priv->mtr_color_reg);
+ if (ret) {
+ DRV_LOG(ERR, "Failed to create transfer policer.");
+ goto error;
+ }
+ }
+ return 0;
+error:
+ flow_dv_destroy_policer_rules(dev, fm, attr);
+ return -1;
+}
+
+/**
+ * Query a devx counter.
+ *
+ * @param[in] dev
+ * Pointer to the Ethernet device structure.
+ * @param[in] cnt
+ * Index to the flow counter.
+ * @param[in] clear
+ * Set to clear the counter statistics.
+ * @param[out] pkts
+ * The statistics value of packets.
+ * @param[out] bytes
+ * The statistics value of bytes.
+ *
+ * @return
+ * 0 on success, otherwise return -1.
+ */
+static int
+flow_dv_counter_query(struct rte_eth_dev *dev, uint32_t counter, bool clear,
+ uint64_t *pkts, uint64_t *bytes)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_flow_counter *cnt;
+ uint64_t inn_pkts, inn_bytes;
+ int ret;
+
+ if (!priv->config.devx)
+ return -1;
+
+ ret = _flow_dv_query_count(dev, counter, &inn_pkts, &inn_bytes);
+ if (ret)
+ return -1;
+ cnt = flow_dv_counter_get_by_idx(dev, counter, NULL);
+ *pkts = inn_pkts - cnt->hits;
+ *bytes = inn_bytes - cnt->bytes;
+ if (clear) {
+ cnt->hits = inn_pkts;
+ cnt->bytes = inn_bytes;
+ }
+ return 0;
+}
+
+/**
+ * Get aged-out flows.
+ *
+ * @param[in] dev
+ * Pointer to the Ethernet device structure.
+ * @param[in] context
+ * The address of an array of pointers to the aged-out flows contexts.
+ * @param[in] nb_contexts
+ * The length of context array pointers.
+ * @param[out] error
+ * Perform verbose error reporting if not NULL. Initialized in case of
+ * error only.
+ *
+ * @return
+ * how many contexts get in success, otherwise negative errno value.
+ * if nb_contexts is 0, return the amount of all aged contexts.
+ * if nb_contexts is not 0 , return the amount of aged flows reported
+ * in the context array.
+ * @note: only stub for now
+ */
+static int
+flow_get_aged_flows(struct rte_eth_dev *dev,
+ void **context,
+ uint32_t nb_contexts,
+ struct rte_flow_error *error)
+{
+ struct mlx5_priv *priv = dev->data->dev_private;
+ struct mlx5_age_info *age_info;
+ struct mlx5_age_param *age_param;
+ struct mlx5_flow_counter *counter;
+ int nb_flows = 0;
+
+ if (nb_contexts && !context)
+ return rte_flow_error_set(error, EINVAL,
+ RTE_FLOW_ERROR_TYPE_UNSPECIFIED,
+ NULL,
+ "Should assign at least one flow or"
+ " context to get if nb_contexts != 0");
+ age_info = GET_PORT_AGE_INFO(priv);
+ rte_spinlock_lock(&age_info->aged_sl);
+ TAILQ_FOREACH(counter, &age_info->aged_counters, next) {
+ nb_flows++;
+ if (nb_contexts) {
+ age_param = MLX5_CNT_TO_AGE(counter);
+ context[nb_flows - 1] = age_param->context;
+ if (!(--nb_contexts))
+ break;
+ }
+ }
+ rte_spinlock_unlock(&age_info->aged_sl);
+ MLX5_AGE_SET(age_info, MLX5_AGE_TRIGGER);
+ return nb_flows;
+}
+