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Thu, 17 Feb 2022 08:28:32 +0000 Received: from rnnvmail201.nvidia.com (10.129.68.8) by rnnvmail205.nvidia.com (10.129.68.10) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.986.9; Thu, 17 Feb 2022 00:28:31 -0800 Received: from vdi.nvidia.com (10.127.8.14) by mail.nvidia.com (10.129.68.8) with Microsoft SMTP Server id 15.2.986.9 via Frontend Transport; Thu, 17 Feb 2022 00:28:24 -0800 From: Jianbo Liu To: , , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , Jianbo Liu Subject: [PATCH net-next v2 1/2] net: flow_offload: add tc police action parameters Date: Thu, 17 Feb 2022 08:28:02 +0000 Message-ID: <20220217082803.3881-2-jianbol@nvidia.com> X-Mailer: git-send-email 2.26.2 In-Reply-To: <20220217082803.3881-1-jianbol@nvidia.com> References: <20220217082803.3881-1-jianbol@nvidia.com> MIME-Version: 1.0 X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: 3a32411e-5dda-46bd-de7d-08d9f1ef89e8 X-MS-TrafficTypeDiagnostic: BL1PR12MB5873:EE_ X-Microsoft-Antispam-PRVS: X-MS-Oob-TLC-OOBClassifiers: OLM:6108; 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X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Feb 2022 08:28:56.1134 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 3a32411e-5dda-46bd-de7d-08d9f1ef89e8 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[12.22.5.235];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN8NAM11FT018.eop-nam11.prod.protection.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL1PR12MB5873 Precedence: bulk List-ID: X-Mailing-List: linux-rdma@vger.kernel.org The current police offload action entry is missing exceed/notexceed actions and parameters that can be configured by tc police action. Add the missing parameters as a pre-step for offloading police actions to hardware. Signed-off-by: Jianbo Liu Signed-off-by: Roi Dayan Reviewed-by: Ido Schimmel --- include/net/flow_offload.h | 13 ++++++++++ include/net/tc_act/tc_police.h | 30 ++++++++++++++++++++++ net/sched/act_police.c | 46 ++++++++++++++++++++++++++++++++++ 3 files changed, 89 insertions(+) diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h index 5b8c54eb7a6b..94cde6bbc8a5 100644 --- a/include/net/flow_offload.h +++ b/include/net/flow_offload.h @@ -148,6 +148,8 @@ enum flow_action_id { FLOW_ACTION_MPLS_MANGLE, FLOW_ACTION_GATE, FLOW_ACTION_PPPOE_PUSH, + FLOW_ACTION_JUMP, + FLOW_ACTION_PIPE, NUM_FLOW_ACTIONS, }; @@ -235,9 +237,20 @@ struct flow_action_entry { struct { /* FLOW_ACTION_POLICE */ u32 burst; u64 rate_bytes_ps; + u64 peakrate_bytes_ps; + u32 avrate; + u16 overhead; u64 burst_pkt; u64 rate_pkt_ps; u32 mtu; + struct { + enum flow_action_id act_id; + u32 index; + } exceed; + struct { + enum flow_action_id act_id; + u32 index; + } notexceed; } police; struct { /* FLOW_ACTION_CT */ int action; diff --git a/include/net/tc_act/tc_police.h b/include/net/tc_act/tc_police.h index 72649512dcdd..283bde711a42 100644 --- a/include/net/tc_act/tc_police.h +++ b/include/net/tc_act/tc_police.h @@ -159,4 +159,34 @@ static inline u32 tcf_police_tcfp_mtu(const struct tc_action *act) return params->tcfp_mtu; } +static inline u64 tcf_police_peakrate_bytes_ps(const struct tc_action *act) +{ + struct tcf_police *police = to_police(act); + struct tcf_police_params *params; + + params = rcu_dereference_protected(police->params, + lockdep_is_held(&police->tcf_lock)); + return params->peak.rate_bytes_ps; +} + +static inline u32 tcf_police_tcfp_ewma_rate(const struct tc_action *act) +{ + struct tcf_police *police = to_police(act); + struct tcf_police_params *params; + + params = rcu_dereference_protected(police->params, + lockdep_is_held(&police->tcf_lock)); + return params->tcfp_ewma_rate; +} + +static inline u16 tcf_police_rate_overhead(const struct tc_action *act) +{ + struct tcf_police *police = to_police(act); + struct tcf_police_params *params; + + params = rcu_dereference_protected(police->params, + lockdep_is_held(&police->tcf_lock)); + return params->rate.overhead; +} + #endif /* __NET_TC_POLICE_H */ diff --git a/net/sched/act_police.c b/net/sched/act_police.c index 0923aa2b8f8a..0457b6c9c4e7 100644 --- a/net/sched/act_police.c +++ b/net/sched/act_police.c @@ -405,20 +405,66 @@ static int tcf_police_search(struct net *net, struct tc_action **a, u32 index) return tcf_idr_search(tn, a, index); } +static int tcf_police_act_to_flow_act(int tc_act, int *index) +{ + int act_id = -EOPNOTSUPP; + + if (!TC_ACT_EXT_OPCODE(tc_act)) { + if (tc_act == TC_ACT_OK) + act_id = FLOW_ACTION_ACCEPT; + else if (tc_act == TC_ACT_SHOT) + act_id = FLOW_ACTION_DROP; + else if (tc_act == TC_ACT_PIPE) + act_id = FLOW_ACTION_PIPE; + } else if (TC_ACT_EXT_CMP(tc_act, TC_ACT_GOTO_CHAIN)) { + act_id = FLOW_ACTION_GOTO; + *index = tc_act & TC_ACT_EXT_VAL_MASK; + } else if (TC_ACT_EXT_CMP(tc_act, TC_ACT_JUMP)) { + act_id = FLOW_ACTION_JUMP; + *index = tc_act & TC_ACT_EXT_VAL_MASK; + } + + return act_id; +} + static int tcf_police_offload_act_setup(struct tc_action *act, void *entry_data, u32 *index_inc, bool bind) { if (bind) { struct flow_action_entry *entry = entry_data; + struct tcf_police *police = to_police(act); + struct tcf_police_params *p; + int act_id; + + p = rcu_dereference_protected(police->params, + lockdep_is_held(&police->tcf_lock)); entry->id = FLOW_ACTION_POLICE; entry->police.burst = tcf_police_burst(act); entry->police.rate_bytes_ps = tcf_police_rate_bytes_ps(act); + entry->police.peakrate_bytes_ps = tcf_police_peakrate_bytes_ps(act); + entry->police.avrate = tcf_police_tcfp_ewma_rate(act); + entry->police.overhead = tcf_police_rate_overhead(act); entry->police.burst_pkt = tcf_police_burst_pkt(act); entry->police.rate_pkt_ps = tcf_police_rate_pkt_ps(act); entry->police.mtu = tcf_police_tcfp_mtu(act); + + act_id = tcf_police_act_to_flow_act(police->tcf_action, + &entry->police.exceed.index); + if (act_id < 0) + return act_id; + + entry->police.exceed.act_id = act_id; + + act_id = tcf_police_act_to_flow_act(p->tcfp_result, + &entry->police.notexceed.index); + if (act_id < 0) + return act_id; + + entry->police.notexceed.act_id = act_id; + *index_inc = 1; } else { struct flow_offload_action *fl_action = entry_data;