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Miller" , Jakub Kicinski , Paolo Abeni , linux-kernel@vger.kernel.org Subject: [PATCH net-next] net: prestera: add police action support Date: Wed, 27 Apr 2022 15:05:48 +0300 Message-Id: <1651061148-21321-1-git-send-email-volodymyr.mytnyk@plvision.eu> X-Mailer: git-send-email 2.7.4 X-ClientProxiedBy: FR3P281CA0030.DEUP281.PROD.OUTLOOK.COM (2603:10a6:d10:1c::16) To DB9P190MB1963.EURP190.PROD.OUTLOOK.COM (2603:10a6:10:397::18) MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-Office365-Filtering-Correlation-Id: dcfc51ce-9d70-4314-497d-08da28464de1 X-MS-TrafficTypeDiagnostic: DB9P190MB1306:EE_ X-Microsoft-Antispam-PRVS: X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:255.255.255.255;CTRY:;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:DB9P190MB1963.EURP190.PROD.OUTLOOK.COM;PTR:;CAT:NONE;SFS:(13230001)(376002)(39830400003)(366004)(346002)(396003)(136003)(5660300002)(316002)(44832011)(6512007)(26005)(83380400001)(54906003)(86362001)(8936002)(52116002)(6666004)(6916009)(6506007)(186003)(2616005)(36756003)(508600001)(38100700002)(2906002)(38350700002)(6486002)(4326008)(8676002)(66946007)(66476007)(66556008);DIR:OUT;SFP:1102; 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} accept, drop, trap; struct { + u8 valid:1; + struct prestera_acl_action_police i; + } police; + struct { struct prestera_acl_action_jump i; u8 valid:1; } jump; @@ -533,6 +537,12 @@ static int __prestera_acl_rule_entry2hw_add(struct prestera_switch *sw, act_hw[act_num].id = PRESTERA_ACL_RULE_ACTION_TRAP; act_num++; } + /* police */ + if (e->police.valid) { + act_hw[act_num].id = PRESTERA_ACL_RULE_ACTION_POLICE; + act_hw[act_num].police = e->police.i; + act_num++; + } /* jump */ if (e->jump.valid) { act_hw[act_num].id = PRESTERA_ACL_RULE_ACTION_JUMP; @@ -557,6 +567,9 @@ __prestera_acl_rule_entry_act_destruct(struct prestera_switch *sw, { /* counter */ prestera_counter_put(sw->counter, e->counter.block, e->counter.id); + /* police */ + if (e->police.valid) + prestera_hw_policer_release(sw, e->police.i.id); } void prestera_acl_rule_entry_destroy(struct prestera_acl *acl, @@ -579,6 +592,8 @@ __prestera_acl_rule_entry_act_construct(struct prestera_switch *sw, struct prestera_acl_rule_entry *e, struct prestera_acl_rule_entry_arg *arg) { + int err; + /* accept */ e->accept.valid = arg->accept.valid; /* drop */ @@ -588,10 +603,26 @@ __prestera_acl_rule_entry_act_construct(struct prestera_switch *sw, /* jump */ e->jump.valid = arg->jump.valid; e->jump.i = arg->jump.i; + /* police */ + if (arg->police.valid) { + u8 type = arg->police.ingress ? PRESTERA_POLICER_TYPE_INGRESS : + PRESTERA_POLICER_TYPE_EGRESS; + + err = prestera_hw_policer_create(sw, type, &e->police.i.id); + if (err) + goto err_out; + + err = prestera_hw_policer_sr_tcm_set(sw, e->police.i.id, + arg->police.rate, + arg->police.burst); + if (err) { + prestera_hw_policer_release(sw, e->police.i.id); + goto err_out; + } + e->police.valid = arg->police.valid; + } /* counter */ if (arg->count.valid) { - int err; - err = prestera_counter_get(sw->counter, arg->count.client, &e->counter.block, &e->counter.id); diff --git a/drivers/net/ethernet/marvell/prestera/prestera_acl.h b/drivers/net/ethernet/marvell/prestera/prestera_acl.h index 6d2ad27682d1..f963e1e0c0f0 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_acl.h +++ b/drivers/net/ethernet/marvell/prestera/prestera_acl.h @@ -56,6 +56,7 @@ enum prestera_acl_rule_action { PRESTERA_ACL_RULE_ACTION_TRAP = 2, PRESTERA_ACL_RULE_ACTION_JUMP = 5, PRESTERA_ACL_RULE_ACTION_COUNT = 7, + PRESTERA_ACL_RULE_ACTION_POLICE = 8, PRESTERA_ACL_RULE_ACTION_MAX }; @@ -74,6 +75,10 @@ struct prestera_acl_action_jump { u32 index; }; +struct prestera_acl_action_police { + u32 id; +}; + struct prestera_acl_action_count { u32 id; }; @@ -86,6 +91,7 @@ struct prestera_acl_rule_entry_key { struct prestera_acl_hw_action_info { enum prestera_acl_rule_action id; union { + struct prestera_acl_action_police police; struct prestera_acl_action_count count; struct prestera_acl_action_jump jump; }; @@ -107,6 +113,12 @@ struct prestera_acl_rule_entry_arg { } jump; struct { u8 valid:1; + u64 rate; + u64 burst; + bool ingress; + } police; + struct { + u8 valid:1; u32 client; } count; }; diff --git a/drivers/net/ethernet/marvell/prestera/prestera_flower.c b/drivers/net/ethernet/marvell/prestera/prestera_flower.c index c12b09ac6559..d43e503c644f 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_flower.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_flower.c @@ -108,6 +108,16 @@ static int prestera_flower_parse_actions(struct prestera_flow_block *block, rule->re_arg.trap.valid = 1; break; + case FLOW_ACTION_POLICE: + if (rule->re_arg.police.valid) + return -EEXIST; + + rule->re_arg.police.valid = 1; + rule->re_arg.police.rate = + act->police.rate_bytes_ps; + rule->re_arg.police.burst = act->police.burst; + rule->re_arg.police.ingress = true; + break; case FLOW_ACTION_GOTO: err = prestera_flower_parse_goto_action(block, rule, chain_index, diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.c b/drivers/net/ethernet/marvell/prestera/prestera_hw.c index c66cc929c820..79fd3cac539d 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_hw.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.c @@ -74,6 +74,10 @@ enum prestera_cmd_type_t { PRESTERA_CMD_TYPE_SPAN_UNBIND = 0x1102, PRESTERA_CMD_TYPE_SPAN_RELEASE = 0x1103, + PRESTERA_CMD_TYPE_POLICER_CREATE = 0x1500, + PRESTERA_CMD_TYPE_POLICER_RELEASE = 0x1501, + PRESTERA_CMD_TYPE_POLICER_SET = 0x1502, + PRESTERA_CMD_TYPE_CPU_CODE_COUNTERS_GET = 0x2000, PRESTERA_CMD_TYPE_ACK = 0x10000, @@ -164,6 +168,10 @@ enum { }; enum { + PRESTERA_POLICER_MODE_SR_TCM +}; + +enum { PRESTERA_HW_FDB_ENTRY_TYPE_REG_PORT = 0, PRESTERA_HW_FDB_ENTRY_TYPE_LAG = 1, PRESTERA_HW_FDB_ENTRY_TYPE_MAX = 2, @@ -430,6 +438,9 @@ struct prestera_msg_acl_action { } jump; struct { __le32 id; + } police; + struct { + __le32 id; } count; __le32 reserved[6]; }; @@ -570,6 +581,26 @@ struct mvsw_msg_cpu_code_counter_ret { __le64 packet_count; }; +struct prestera_msg_policer_req { + struct prestera_msg_cmd cmd; + __le32 id; + union { + struct { + __le64 cir; + __le32 cbs; + } __packed sr_tcm; /* make sure always 12 bytes size */ + __le32 reserved[6]; + }; + u8 mode; + u8 type; + u8 pad[2]; +}; + +struct prestera_msg_policer_resp { + struct prestera_msg_ret ret; + __le32 id; +}; + struct prestera_msg_event { __le16 type; __le16 id; @@ -622,6 +653,7 @@ static void prestera_hw_build_tests(void) BUILD_BUG_ON(sizeof(struct prestera_msg_rif_req) != 36); BUILD_BUG_ON(sizeof(struct prestera_msg_vr_req) != 8); BUILD_BUG_ON(sizeof(struct prestera_msg_lpm_req) != 36); + BUILD_BUG_ON(sizeof(struct prestera_msg_policer_req) != 36); /* structure that are part of req/resp fw messages */ BUILD_BUG_ON(sizeof(struct prestera_msg_iface) != 16); @@ -640,6 +672,7 @@ static void prestera_hw_build_tests(void) BUILD_BUG_ON(sizeof(struct prestera_msg_counter_resp) != 24); BUILD_BUG_ON(sizeof(struct prestera_msg_rif_resp) != 12); BUILD_BUG_ON(sizeof(struct prestera_msg_vr_resp) != 12); + BUILD_BUG_ON(sizeof(struct prestera_msg_policer_resp) != 12); /* check events */ BUILD_BUG_ON(sizeof(struct prestera_msg_event_port) != 20); @@ -1192,6 +1225,9 @@ prestera_acl_rule_add_put_action(struct prestera_msg_acl_action *action, case PRESTERA_ACL_RULE_ACTION_JUMP: action->jump.index = __cpu_to_le32(info->jump.index); break; + case PRESTERA_ACL_RULE_ACTION_POLICE: + action->police.id = __cpu_to_le32(info->police.id); + break; case PRESTERA_ACL_RULE_ACTION_COUNT: action->count.id = __cpu_to_le32(info->count.id); break; @@ -2163,3 +2199,48 @@ int prestera_hw_counter_clear(struct prestera_switch *sw, u32 block_id, return prestera_cmd(sw, PRESTERA_CMD_TYPE_COUNTER_CLEAR, &req.cmd, sizeof(req)); } + +int prestera_hw_policer_create(struct prestera_switch *sw, u8 type, + u32 *policer_id) +{ + struct prestera_msg_policer_resp resp; + struct prestera_msg_policer_req req = { + .type = type + }; + int err; + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_POLICER_CREATE, + &req.cmd, sizeof(req), &resp.ret, sizeof(resp)); + if (err) + return err; + + *policer_id = __le32_to_cpu(resp.id); + return 0; +} + +int prestera_hw_policer_release(struct prestera_switch *sw, + u32 policer_id) +{ + struct prestera_msg_policer_req req = { + .id = __cpu_to_le32(policer_id) + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_POLICER_RELEASE, + &req.cmd, sizeof(req)); +} + +int prestera_hw_policer_sr_tcm_set(struct prestera_switch *sw, + u32 policer_id, u64 cir, u32 cbs) +{ + struct prestera_msg_policer_req req = { + .mode = PRESTERA_POLICER_MODE_SR_TCM, + .id = __cpu_to_le32(policer_id), + .sr_tcm = { + .cir = __cpu_to_le64(cir), + .cbs = __cpu_to_le32(cbs) + } + }; + + return prestera_cmd(sw, PRESTERA_CMD_TYPE_POLICER_SET, + &req.cmd, sizeof(req)); +} diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.h b/drivers/net/ethernet/marvell/prestera/prestera_hw.h index fd896a8838bb..579d9ba23ffc 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_hw.h +++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.h @@ -107,6 +107,11 @@ enum { PRESTERA_STP_FORWARD, }; +enum { + PRESTERA_POLICER_TYPE_INGRESS, + PRESTERA_POLICER_TYPE_EGRESS +}; + enum prestera_hw_cpu_code_cnt_t { PRESTERA_HW_CPU_CODE_CNT_TYPE_DROP = 0, PRESTERA_HW_CPU_CODE_CNT_TYPE_TRAP = 1, @@ -288,4 +293,12 @@ prestera_hw_cpu_code_counters_get(struct prestera_switch *sw, u8 code, enum prestera_hw_cpu_code_cnt_t counter_type, u64 *packet_count); +/* Policer API */ +int prestera_hw_policer_create(struct prestera_switch *sw, u8 type, + u32 *policer_id); +int prestera_hw_policer_release(struct prestera_switch *sw, + u32 policer_id); +int prestera_hw_policer_sr_tcm_set(struct prestera_switch *sw, + u32 policer_id, u64 cir, u32 cbs); + #endif /* _PRESTERA_HW_H_ */