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DIR:OUT; SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 06 Jul 2021 13:15:20.3474 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 487402ba-914b-469f-5303-08d940801b26 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a; Ip=[216.228.112.34]; Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT065.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB3806 Subject: [dpdk-dev] [PATCH v1 1/4] net/mlx5: support meter action in meter policy X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" This makes the meter policy support meter action. So multiple meters can be chained as a meter hierarchy. Only termination meter is allowed as the last meter in a hierarchy, and there're two cases: 1. The last meter has non-RSS policy, can directly create sub-policy and color rules during each meter's policy creation. 2. The last meter has RSS policy, don't create sub-policy/rules when creating meter policy. Only when a RTE flow is using the meter hierarchy, will iterate all meters of the hierarchy and create neede sub- policies and color rules for them. Signed-off-by: Shun Hao Acked-by: Matan Azrad --- drivers/net/mlx5/mlx5.h | 12 ++ drivers/net/mlx5/mlx5_flow.c | 71 +++++--- drivers/net/mlx5/mlx5_flow.h | 5 + drivers/net/mlx5/mlx5_flow_dv.c | 270 ++++++++++++++++++++++++----- drivers/net/mlx5/mlx5_flow_meter.c | 43 ++++- 5 files changed, 332 insertions(+), 69 deletions(-) diff --git a/drivers/net/mlx5/mlx5.h b/drivers/net/mlx5/mlx5.h index 0f4b239142..0c555f0b1f 100644 --- a/drivers/net/mlx5/mlx5.h +++ b/drivers/net/mlx5/mlx5.h @@ -677,6 +677,12 @@ struct mlx5_meter_policy_action_container { /* Jump/drop action per color. */ uint16_t queue; /* Queue action configuration. */ + struct { + uint32_t next_mtr_id; + /* The next meter id. */ + void *next_sub_policy; + /* Next meter's sub-policy. */ + }; }; }; @@ -694,6 +700,8 @@ struct mlx5_flow_meter_policy { /* Rule applies to transfer domain. */ uint32_t is_queue:1; /* Is queue action in policy table. */ + uint32_t is_hierarchy:1; + /* Is meter action in policy table. */ rte_spinlock_t sl; uint32_t ref_cnt; /* Use count. */ @@ -712,6 +720,7 @@ struct mlx5_flow_meter_policy { #define MLX5_MTR_SUB_POLICY_NUM_SHIFT 3 #define MLX5_MTR_SUB_POLICY_NUM_MASK 0x7 #define MLX5_MTRS_DEFAULT_RULE_PRIORITY 0xFFFF +#define MLX5_MTR_CHAIN_MAX_NUM 8 /* Flow meter default policy parameter structure. * Policy index 0 is reserved by default policy table. @@ -1669,6 +1678,9 @@ 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_flow_meter_policy * +mlx5_flow_meter_hierarchy_get_final_policy(struct rte_eth_dev *dev, + struct mlx5_flow_meter_policy *policy); int mlx5_flow_meter_flush(struct rte_eth_dev *dev, struct rte_mtr_error *error); void mlx5_flow_meter_rxq_flush(struct rte_eth_dev *dev); diff --git a/drivers/net/mlx5/mlx5_flow.c b/drivers/net/mlx5/mlx5_flow.c index c27f6197a0..6c4bfde098 100644 --- a/drivers/net/mlx5/mlx5_flow.c +++ b/drivers/net/mlx5/mlx5_flow.c @@ -3492,10 +3492,18 @@ flow_get_rss_action(struct rte_eth_dev *dev, const struct rte_flow_action_meter *mtr = actions->conf; fm = mlx5_flow_meter_find(priv, mtr->mtr_id, &mtr_idx); - if (fm) { + if (fm && !fm->def_policy) { policy = mlx5_flow_meter_policy_find(dev, fm->policy_id, NULL); - if (policy && policy->is_rss) + MLX5_ASSERT(policy); + if (policy->is_hierarchy) { + policy = + mlx5_flow_meter_hierarchy_get_final_policy(dev, + policy); + if (!policy) + return NULL; + } + if (policy->is_rss) rss = policy->act_cnt[RTE_COLOR_GREEN].rss->conf; } @@ -4564,8 +4572,8 @@ flow_create_split_inner(struct rte_eth_dev *dev, * Pointer to Ethernet device. * @param[in] flow * Parent flow structure pointer. - * @param[in] policy_id; - * Meter Policy id. + * @param wks + * Pointer to thread flow work space. * @param[in] attr * Flow rule attributes. * @param[in] items @@ -4579,31 +4587,22 @@ flow_create_split_inner(struct rte_eth_dev *dev, static struct mlx5_flow_meter_sub_policy * get_meter_sub_policy(struct rte_eth_dev *dev, struct rte_flow *flow, - uint32_t policy_id, + struct mlx5_flow_workspace *wks, const struct rte_flow_attr *attr, const struct rte_flow_item items[], struct rte_flow_error *error) { struct mlx5_flow_meter_policy *policy; + struct mlx5_flow_meter_policy *final_policy; struct mlx5_flow_meter_sub_policy *sub_policy = NULL; - policy = mlx5_flow_meter_policy_find(dev, policy_id, NULL); - if (!policy) { - rte_flow_error_set(error, EINVAL, - RTE_FLOW_ERROR_TYPE_UNSPECIFIED, NULL, - "Failed to find Meter Policy."); - goto exit; - } - if (policy->is_rss || - (policy->is_queue && - !policy->sub_policys[MLX5_MTR_DOMAIN_INGRESS][0]->rix_hrxq[0])) { - struct mlx5_flow_workspace *wks = - mlx5_flow_get_thread_workspace(); + policy = wks->policy; + final_policy = policy->is_hierarchy ? wks->final_policy : policy; + if (final_policy->is_rss || final_policy->is_queue) { struct mlx5_flow_rss_desc rss_desc_v[MLX5_MTR_RTE_COLORS]; struct mlx5_flow_rss_desc *rss_desc[MLX5_MTR_RTE_COLORS] = {0}; uint32_t i; - MLX5_ASSERT(wks); /** * This is a tmp dev_flow, * no need to register any matcher for it in translate. @@ -4613,9 +4612,9 @@ get_meter_sub_policy(struct rte_eth_dev *dev, struct mlx5_flow dev_flow = {0}; struct mlx5_flow_handle dev_handle = { {0} }; - if (policy->is_rss) { + if (final_policy->is_rss) { const void *rss_act = - policy->act_cnt[i].rss->conf; + final_policy->act_cnt[i].rss->conf; struct rte_flow_action rss_actions[2] = { [0] = { .type = RTE_FLOW_ACTION_TYPE_RSS, @@ -4656,7 +4655,7 @@ get_meter_sub_policy(struct rte_eth_dev *dev, rss_desc_v[i].key_len = 0; rss_desc_v[i].hash_fields = 0; rss_desc_v[i].queue = - &policy->act_cnt[i].queue; + &final_policy->act_cnt[i].queue; rss_desc_v[i].queue_num = 1; } rss_desc[i] = &rss_desc_v[i]; @@ -4696,8 +4695,8 @@ get_meter_sub_policy(struct rte_eth_dev *dev, * Pointer to Ethernet device. * @param[in] flow * Parent flow structure pointer. - * @param[in] fm - * Pointer to flow meter structure. + * @param wks + * Pointer to thread flow work space. * @param[in] attr * Flow rule attributes. * @param[in] items @@ -4721,7 +4720,7 @@ get_meter_sub_policy(struct rte_eth_dev *dev, static int flow_meter_split_prep(struct rte_eth_dev *dev, struct rte_flow *flow, - struct mlx5_flow_meter_info *fm, + struct mlx5_flow_workspace *wks, const struct rte_flow_attr *attr, const struct rte_flow_item items[], struct rte_flow_item sfx_items[], @@ -4732,6 +4731,7 @@ flow_meter_split_prep(struct rte_eth_dev *dev, struct rte_flow_error *error) { struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_flow_meter_info *fm = wks->fm; struct rte_flow_action *tag_action = NULL; struct rte_flow_item *tag_item; struct mlx5_rte_flow_action_set_tag *set_tag; @@ -4856,9 +4856,8 @@ flow_meter_split_prep(struct rte_eth_dev *dev, struct mlx5_flow_tbl_data_entry *tbl_data; if (!fm->def_policy) { - sub_policy = get_meter_sub_policy(dev, flow, - fm->policy_id, attr, - items, error); + sub_policy = get_meter_sub_policy(dev, flow, wks, + attr, items, error); if (!sub_policy) return -rte_errno; } else { @@ -5746,6 +5745,22 @@ flow_create_split_meter(struct rte_eth_dev *dev, } MLX5_ASSERT(wks); wks->fm = fm; + if (!fm->def_policy) { + wks->policy = mlx5_flow_meter_policy_find(dev, + fm->policy_id, + NULL); + MLX5_ASSERT(wks->policy); + if (wks->policy->is_hierarchy) { + wks->final_policy = + mlx5_flow_meter_hierarchy_get_final_policy(dev, + wks->policy); + if (!wks->final_policy) + return rte_flow_error_set(error, + EINVAL, + RTE_FLOW_ERROR_TYPE_ACTION, NULL, + "Failed to find terminal policy of hierarchy."); + } + } /* * If it isn't default-policy Meter, and * 1. There's no action in flow to change @@ -5776,7 +5791,7 @@ flow_create_split_meter(struct rte_eth_dev *dev, pre_actions = sfx_actions + 1; else pre_actions = sfx_actions + actions_n; - ret = flow_meter_split_prep(dev, flow, fm, &sfx_attr, + ret = flow_meter_split_prep(dev, flow, wks, &sfx_attr, items, sfx_items, actions, sfx_actions, pre_actions, (set_mtr_reg ? &mtr_flow_id : NULL), diff --git a/drivers/net/mlx5/mlx5_flow.h b/drivers/net/mlx5/mlx5_flow.h index 2f2aa962f9..09d6d609db 100644 --- a/drivers/net/mlx5/mlx5_flow.h +++ b/drivers/net/mlx5/mlx5_flow.h @@ -454,6 +454,7 @@ enum mlx5_flow_fate_type { MLX5_FLOW_FATE_DROP, MLX5_FLOW_FATE_DEFAULT_MISS, MLX5_FLOW_FATE_SHARED_RSS, + MLX5_FLOW_FATE_MTR, MLX5_FLOW_FATE_MAX, }; @@ -1102,6 +1103,10 @@ struct mlx5_flow_workspace { uint32_t rssq_num; /* Allocated queue num in rss_desc. */ uint32_t flow_idx; /* Intermediate device flow index. */ struct mlx5_flow_meter_info *fm; /* Pointer to the meter in flow. */ + struct mlx5_flow_meter_policy *policy; + /* The meter policy used by meter in flow. */ + struct mlx5_flow_meter_policy *final_policy; + /* The final policy when meter policy is hierarchy. */ uint32_t skip_matcher_reg:1; /* Indicates if need to skip matcher register in translate. */ }; diff --git a/drivers/net/mlx5/mlx5_flow_dv.c b/drivers/net/mlx5/mlx5_flow_dv.c index 75ef6216ac..d34f5214a8 100644 --- a/drivers/net/mlx5/mlx5_flow_dv.c +++ b/drivers/net/mlx5/mlx5_flow_dv.c @@ -7864,6 +7864,8 @@ flow_dv_prepare(struct rte_eth_dev *dev, MLX5_ASSERT(wks); wks->skip_matcher_reg = 0; + wks->policy = NULL; + wks->final_policy = NULL; /* In case of corrupting the memory. */ if (wks->flow_idx >= MLX5_NUM_MAX_DEV_FLOWS) { rte_flow_error_set(error, ENOSPC, @@ -15028,6 +15030,37 @@ __flow_dv_create_domain_policy_acts(struct rte_eth_dev *dev, action_flags |= MLX5_FLOW_ACTION_JUMP; break; } + case RTE_FLOW_ACTION_TYPE_METER: + { + const struct rte_flow_action_meter *mtr; + struct mlx5_flow_meter_info *next_fm; + struct mlx5_flow_meter_policy *next_policy; + uint32_t next_mtr_idx = 0; + + mtr = act->conf; + next_fm = mlx5_flow_meter_find(priv, + mtr->mtr_id, + &next_mtr_idx); + if (!next_fm) + return -rte_mtr_error_set(error, EINVAL, + RTE_MTR_ERROR_TYPE_MTR_ID, NULL, + "Fail to find next meter."); + if (next_fm->def_policy) + return -rte_mtr_error_set(error, EINVAL, + RTE_MTR_ERROR_TYPE_MTR_ID, NULL, + "Hierarchy only supports termination meter."); + next_policy = mlx5_flow_meter_policy_find(dev, + next_fm->policy_id, NULL); + MLX5_ASSERT(next_policy); + act_cnt->fate_action = MLX5_FLOW_FATE_MTR; + act_cnt->next_mtr_id = next_fm->meter_id; + act_cnt->next_sub_policy = NULL; + mtr_policy->is_hierarchy = 1; + mtr_policy->dev = next_policy->dev; + action_flags |= + MLX5_FLOW_ACTION_METER_WITH_TERMINATED_POLICY; + break; + } default: return -rte_mtr_error_set(error, ENOTSUP, RTE_MTR_ERROR_TYPE_METER_POLICY, @@ -15563,7 +15596,14 @@ __flow_dv_create_policy_acts_rules(struct rte_eth_dev *dev, struct mlx5_flow_dv_tag_resource *tag; struct mlx5_flow_dv_port_id_action_resource *port_action; struct mlx5_hrxq *hrxq; - uint8_t egress, transfer; + struct mlx5_flow_meter_info *next_fm = NULL; + struct mlx5_flow_meter_policy *next_policy; + struct mlx5_flow_meter_sub_policy *next_sub_policy; + struct mlx5_flow_tbl_data_entry *tbl_data; + struct rte_flow_error error; + uint8_t egress = (domain == MLX5_MTR_DOMAIN_EGRESS) ? 1 : 0; + uint8_t transfer = (domain == MLX5_MTR_DOMAIN_TRANSFER) ? 1 : 0; + bool mtr_first = egress || (transfer && priv->representor_id != 0xffff); bool match_src_port = false; int i; @@ -15578,13 +15618,39 @@ __flow_dv_create_policy_acts_rules(struct rte_eth_dev *dev, acts[i].actions_n = 1; continue; } + if (mtr_policy->act_cnt[i].fate_action == MLX5_FLOW_FATE_MTR) { + struct rte_flow_attr attr = { + .transfer = transfer + }; + + next_fm = mlx5_flow_meter_find(priv, + mtr_policy->act_cnt[i].next_mtr_id, + NULL); + if (!next_fm) { + DRV_LOG(ERR, + "Failed to get next hierarchy meter."); + goto err_exit; + } + if (mlx5_flow_meter_attach(priv, next_fm, + &attr, &error)) { + DRV_LOG(ERR, "%s", error.message); + next_fm = NULL; + goto err_exit; + } + /* Meter action must be the first for TX. */ + if (mtr_first) { + acts[i].dv_actions[acts[i].actions_n] = + next_fm->meter_action; + acts[i].actions_n++; + } + } if (mtr_policy->act_cnt[i].rix_mark) { tag = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_TAG], mtr_policy->act_cnt[i].rix_mark); if (!tag) { DRV_LOG(ERR, "Failed to find " "mark action for policy."); - return -1; + goto err_exit; } acts[i].dv_actions[acts[i].actions_n] = tag->action; @@ -15604,7 +15670,7 @@ __flow_dv_create_policy_acts_rules(struct rte_eth_dev *dev, if (!port_action) { DRV_LOG(ERR, "Failed to find " "port action for policy."); - return -1; + goto err_exit; } acts[i].dv_actions[acts[i].actions_n] = port_action->action; @@ -15626,12 +15692,42 @@ __flow_dv_create_policy_acts_rules(struct rte_eth_dev *dev, if (!hrxq) { DRV_LOG(ERR, "Failed to find " "queue action for policy."); - return -1; + goto err_exit; } acts[i].dv_actions[acts[i].actions_n] = hrxq->action; acts[i].actions_n++; break; + case MLX5_FLOW_FATE_MTR: + if (!next_fm) { + DRV_LOG(ERR, + "No next hierarchy meter."); + goto err_exit; + } + if (!mtr_first) { + acts[i].dv_actions[acts[i].actions_n] = + next_fm->meter_action; + acts[i].actions_n++; + } + if (mtr_policy->act_cnt[i].next_sub_policy) { + next_sub_policy = + mtr_policy->act_cnt[i].next_sub_policy; + } else { + next_policy = + mlx5_flow_meter_policy_find(dev, + next_fm->policy_id, NULL); + MLX5_ASSERT(next_policy); + next_sub_policy = + next_policy->sub_policys[domain][0]; + } + tbl_data = + container_of(next_sub_policy->tbl_rsc, + struct mlx5_flow_tbl_data_entry, tbl); + acts[i].dv_actions[acts[i].actions_n++] = + tbl_data->jump.action; + if (mtr_policy->act_cnt[i].modify_hdr) + match_src_port = !!transfer; + break; default: /*Queue action do nothing*/ break; @@ -15644,9 +15740,13 @@ __flow_dv_create_policy_acts_rules(struct rte_eth_dev *dev, egress, transfer, match_src_port, acts)) { DRV_LOG(ERR, "Failed to create policy rules per domain."); - return -1; + goto err_exit; } return 0; +err_exit: + if (next_fm) + mlx5_flow_meter_detach(priv, next_fm); + return -1; } /** @@ -15956,22 +16056,12 @@ flow_dv_create_mtr_tbls(struct rte_eth_dev *dev, return -1; } -/** - * Find the policy table for prefix table with RSS. - * - * @param[in] dev - * Pointer to Ethernet device. - * @param[in] mtr_policy - * Pointer to meter policy table. - * @param[in] rss_desc - * Pointer to rss_desc - * @return - * Pointer to table set on success, NULL otherwise and rte_errno is set. - */ static struct mlx5_flow_meter_sub_policy * -flow_dv_meter_sub_policy_rss_prepare(struct rte_eth_dev *dev, +__flow_dv_meter_get_rss_sub_policy(struct rte_eth_dev *dev, struct mlx5_flow_meter_policy *mtr_policy, - struct mlx5_flow_rss_desc *rss_desc[MLX5_MTR_RTE_COLORS]) + struct mlx5_flow_rss_desc *rss_desc[MLX5_MTR_RTE_COLORS], + struct mlx5_flow_meter_sub_policy *next_sub_policy, + bool *is_reuse) { struct mlx5_priv *priv = dev->data->dev_private; struct mlx5_flow_meter_sub_policy *sub_policy = NULL; @@ -16013,6 +16103,7 @@ flow_dv_meter_sub_policy_rss_prepare(struct rte_eth_dev *dev, rte_spinlock_unlock(&mtr_policy->sl); for (j = 0; j < MLX5_MTR_RTE_COLORS; j++) mlx5_hrxq_release(dev, hrxq_idx[j]); + *is_reuse = true; return mtr_policy->sub_policys[domain][i]; } } @@ -16038,24 +16129,30 @@ flow_dv_meter_sub_policy_rss_prepare(struct rte_eth_dev *dev, if (!rss_desc[i]) continue; sub_policy->rix_hrxq[i] = hrxq_idx[i]; - /* - * Overwrite the last action from - * RSS action to Queue action. - */ - hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ], - hrxq_idx[i]); - if (!hrxq) { - DRV_LOG(ERR, "Failed to create policy hrxq"); - goto rss_sub_policy_error; - } - act_cnt = &mtr_policy->act_cnt[i]; - if (act_cnt->rix_mark || act_cnt->modify_hdr) { - memset(&dh, 0, sizeof(struct mlx5_flow_handle)); - if (act_cnt->rix_mark) - dh.mark = 1; - dh.fate_action = MLX5_FLOW_FATE_QUEUE; - dh.rix_hrxq = hrxq_idx[i]; - flow_drv_rxq_flags_set(dev, &dh); + if (mtr_policy->is_hierarchy) { + act_cnt = &mtr_policy->act_cnt[i]; + act_cnt->next_sub_policy = next_sub_policy; + mlx5_hrxq_release(dev, hrxq_idx[i]); + } else { + /* + * Overwrite the last action from + * RSS action to Queue action. + */ + hrxq = mlx5_ipool_get(priv->sh->ipool[MLX5_IPOOL_HRXQ], + hrxq_idx[i]); + if (!hrxq) { + DRV_LOG(ERR, "Failed to create policy hrxq"); + goto rss_sub_policy_error; + } + act_cnt = &mtr_policy->act_cnt[i]; + if (act_cnt->rix_mark || act_cnt->modify_hdr) { + memset(&dh, 0, sizeof(struct mlx5_flow_handle)); + if (act_cnt->rix_mark) + dh.mark = 1; + dh.fate_action = MLX5_FLOW_FATE_QUEUE; + dh.rix_hrxq = hrxq_idx[i]; + flow_drv_rxq_flags_set(dev, &dh); + } } } if (__flow_dv_create_policy_acts_rules(dev, mtr_policy, @@ -16079,6 +16176,7 @@ flow_dv_meter_sub_policy_rss_prepare(struct rte_eth_dev *dev, (MLX5_MTR_SUB_POLICY_NUM_SHIFT * domain); } rte_spinlock_unlock(&mtr_policy->sl); + *is_reuse = false; return sub_policy; rss_sub_policy_error: if (sub_policy) { @@ -16093,13 +16191,105 @@ flow_dv_meter_sub_policy_rss_prepare(struct rte_eth_dev *dev, sub_policy->idx); } } - if (sub_policy_idx) - mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR_POLICY], - sub_policy_idx); rte_spinlock_unlock(&mtr_policy->sl); return NULL; } +/** + * Find the policy table for prefix table with RSS. + * + * @param[in] dev + * Pointer to Ethernet device. + * @param[in] mtr_policy + * Pointer to meter policy table. + * @param[in] rss_desc + * Pointer to rss_desc + * @return + * Pointer to table set on success, NULL otherwise and rte_errno is set. + */ +static struct mlx5_flow_meter_sub_policy * +flow_dv_meter_sub_policy_rss_prepare(struct rte_eth_dev *dev, + struct mlx5_flow_meter_policy *mtr_policy, + struct mlx5_flow_rss_desc *rss_desc[MLX5_MTR_RTE_COLORS]) +{ + struct mlx5_priv *priv = dev->data->dev_private; + struct mlx5_flow_meter_sub_policy *sub_policy = NULL; + struct mlx5_flow_meter_info *next_fm; + struct mlx5_flow_meter_policy *next_policy; + struct mlx5_flow_meter_sub_policy *next_sub_policy = NULL; + struct mlx5_flow_meter_policy *policies[MLX5_MTR_CHAIN_MAX_NUM]; + struct mlx5_flow_meter_sub_policy *sub_policies[MLX5_MTR_CHAIN_MAX_NUM]; + uint32_t domain = MLX5_MTR_DOMAIN_INGRESS; + bool reuse_sub_policy; + uint32_t i = 0; + uint32_t j = 0; + + while (true) { + /* Iterate hierarchy to get all policies in this hierarchy. */ + policies[i++] = mtr_policy; + if (!mtr_policy->is_hierarchy) + break; + if (i >= MLX5_MTR_CHAIN_MAX_NUM) { + DRV_LOG(ERR, "Exceed max meter number in hierarchy."); + return NULL; + } + next_fm = mlx5_flow_meter_find(priv, + mtr_policy->act_cnt[RTE_COLOR_GREEN].next_mtr_id, NULL); + if (!next_fm) { + DRV_LOG(ERR, "Failed to get next meter in hierarchy."); + return NULL; + } + next_policy = + mlx5_flow_meter_policy_find(dev, next_fm->policy_id, + NULL); + MLX5_ASSERT(next_policy); + mtr_policy = next_policy; + } + while (i) { + /** + * From last policy to the first one in hierarchy, + * create/get the sub policy for each of them. + */ + sub_policy = __flow_dv_meter_get_rss_sub_policy(dev, + policies[--i], + rss_desc, + next_sub_policy, + &reuse_sub_policy); + if (!sub_policy) { + DRV_LOG(ERR, "Failed to get the sub policy."); + goto err_exit; + } + if (!reuse_sub_policy) + sub_policies[j++] = sub_policy; + next_sub_policy = sub_policy; + } + return sub_policy; +err_exit: + while (j) { + uint16_t sub_policy_num; + + sub_policy = sub_policies[--j]; + mtr_policy = sub_policy->main_policy; + __flow_dv_destroy_sub_policy_rules(dev, sub_policy); + if (sub_policy != mtr_policy->sub_policys[domain][0]) { + sub_policy_num = (mtr_policy->sub_policy_num >> + (MLX5_MTR_SUB_POLICY_NUM_SHIFT * domain)) & + MLX5_MTR_SUB_POLICY_NUM_MASK; + mtr_policy->sub_policys[domain][sub_policy_num - 1] = + NULL; + 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); + mlx5_ipool_free(priv->sh->ipool[MLX5_IPOOL_MTR_POLICY], + sub_policy->idx); + } + } + return NULL; +} /** * Destroy the sub policy table with RX queue. diff --git a/drivers/net/mlx5/mlx5_flow_meter.c b/drivers/net/mlx5/mlx5_flow_meter.c index 6f962a8d52..03f7e120e1 100644 --- a/drivers/net/mlx5/mlx5_flow_meter.c +++ b/drivers/net/mlx5/mlx5_flow_meter.c @@ -529,6 +529,37 @@ mlx5_flow_meter_policy_find(struct rte_eth_dev *dev, 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 * @@ -650,6 +681,7 @@ mlx5_flow_meter_policy_add(struct rte_eth_dev *dev, 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, @@ -759,7 +791,16 @@ mlx5_flow_meter_policy_add(struct rte_eth_dev *dev, policy->actions, error); if (ret) goto policy_add_err; - if (!is_rss && !mtr_policy->is_queue) { + 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 (!is_rss && !mtr_policy->is_queue && !skip_rule) { /* Create policy rules in HW. */ ret = mlx5_flow_create_policy_rules(dev, mtr_policy); if (ret) -- 2.21.0