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Miller" , Jakub Kicinski , netdev@vger.kernel.org, Andrew Lunn , Jiri Pirko , Vladimir Oltean , Volodymyr Mytnyk , Serhiy Boiko Cc: Vadym Kochan , Taras Chornyi , linux-kernel@vger.kernel.org, Mickey Rachamim , Volodymyr Mytnyk , Vadym Kochan Subject: [RFC net-next 4/4] net: marvell: prestera: Offload FLOW_ACTION_POLICE Date: Fri, 2 Jul 2021 21:29:15 +0300 Message-Id: <20210702182915.1035-5-vadym.kochan@plvision.eu> X-Mailer: git-send-email 2.17.1 In-Reply-To: <20210702182915.1035-1-vadym.kochan@plvision.eu> References: <20210702182915.1035-1-vadym.kochan@plvision.eu> X-Originating-IP: [217.20.186.93] X-ClientProxiedBy: AS8PR04CA0108.eurprd04.prod.outlook.com (2603:10a6:20b:31e::23) To HE1P190MB0539.EURP190.PROD.OUTLOOK.COM (2603:10a6:7:56::28) MIME-Version: 1.0 X-MS-Exchange-MessageSentRepresentingType: 1 Received: from pc60716vkochan.x.ow.s (217.20.186.93) by AS8PR04CA0108.eurprd04.prod.outlook.com (2603:10a6:20b:31e::23) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.4287.22 via Frontend Transport; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: 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 X-OriginatorOrg: plvision.eu X-MS-Exchange-CrossTenant-Network-Message-Id: 2f04c8fd-5469-470d-c6c6-08d93d875fab X-MS-Exchange-CrossTenant-AuthSource: HE1P190MB0539.EURP190.PROD.OUTLOOK.COM X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Jul 2021 18:29:48.6227 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: 03707b74-30f3-46b6-a0e0-ff0a7438c9c4 X-MS-Exchange-CrossTenant-MailboxType: HOSTED X-MS-Exchange-CrossTenant-UserPrincipalName: cl6dGTPxqThgGKufbd9wLEpv2xLQYwezQ3r997M0F3Z+FH70YysggXBKXgpkNhogTVTgL1g1mju7P1S5DSnSP7/EpZhmRjvn9qZF7+jCfBw= X-MS-Exchange-Transport-CrossTenantHeadersStamped: HE1P190MB0394 Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org X-Patchwork-State: RFC From: Serhiy Boiko Offload action police when keyed to a flower classifier. Only rate and burst is supported for now. The conform-exceed drop is assumed as a default value. Policer support requires FW 3.1 version. Still to make a backward compatibility with ACL of FW 3.0 introduced separate FW msg structs for ACL calls which have different field layout. Co-developed-by: Volodymyr Mytnyk Signed-off-by: Volodymyr Mytnyk Signed-off-by: Serhiy Boiko Co-developed-by: Vadym Kochan Signed-off-by: Vadym Kochan --- .../ethernet/marvell/prestera/prestera_acl.c | 14 ++ .../ethernet/marvell/prestera/prestera_acl.h | 11 +- .../marvell/prestera/prestera_flower.c | 18 +++ .../ethernet/marvell/prestera/prestera_hw.c | 125 +++++++++++++++++- .../ethernet/marvell/prestera/prestera_pci.c | 1 + 5 files changed, 165 insertions(+), 4 deletions(-) diff --git a/drivers/net/ethernet/marvell/prestera/prestera_acl.c b/drivers/net/ethernet/marvell/prestera/prestera_acl.c index 83c75ffb1a1c..9a473f94fab0 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_acl.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_acl.c @@ -8,6 +8,8 @@ #include "prestera_acl.h" #include "prestera_span.h" +#define PRESTERA_ACL_DEF_HW_TC 3 + struct prestera_acl { struct prestera_switch *sw; struct list_head rules; @@ -29,6 +31,7 @@ struct prestera_acl_rule { u32 priority; u8 n_actions; u8 n_matches; + u8 hw_tc; u32 id; }; @@ -203,6 +206,7 @@ prestera_acl_rule_create(struct prestera_flow_block *block, INIT_LIST_HEAD(&rule->action_list); rule->cookie = cookie; rule->block = block; + rule->hw_tc = PRESTERA_ACL_DEF_HW_TC; return rule; } @@ -251,6 +255,16 @@ void prestera_acl_rule_priority_set(struct prestera_acl_rule *rule, rule->priority = priority; } +u8 prestera_acl_rule_hw_tc_get(struct prestera_acl_rule *rule) +{ + return rule->hw_tc; +} + +void prestera_acl_rule_hw_tc_set(struct prestera_acl_rule *rule, u8 hw_tc) +{ + rule->hw_tc = hw_tc; +} + int prestera_acl_rule_match_add(struct prestera_acl_rule *rule, struct prestera_acl_rule_match_entry *entry) { diff --git a/drivers/net/ethernet/marvell/prestera/prestera_acl.h b/drivers/net/ethernet/marvell/prestera/prestera_acl.h index 39b7869be659..2a2fbae1432a 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_acl.h +++ b/drivers/net/ethernet/marvell/prestera/prestera_acl.h @@ -25,7 +25,8 @@ enum prestera_acl_rule_match_entry_type { enum prestera_acl_rule_action { PRESTERA_ACL_RULE_ACTION_ACCEPT, PRESTERA_ACL_RULE_ACTION_DROP, - PRESTERA_ACL_RULE_ACTION_TRAP + PRESTERA_ACL_RULE_ACTION_TRAP, + PRESTERA_ACL_RULE_ACTION_POLICE, }; struct prestera_switch; @@ -50,6 +51,12 @@ struct prestera_flow_block { struct prestera_acl_rule_action_entry { struct list_head list; enum prestera_acl_rule_action id; + union { + struct { + u64 rate; + u64 burst; + } police; + }; }; struct prestera_acl_rule_match_entry { @@ -120,5 +127,7 @@ void prestera_acl_rule_del(struct prestera_switch *sw, int prestera_acl_rule_get_stats(struct prestera_switch *sw, struct prestera_acl_rule *rule, u64 *packets, u64 *bytes, u64 *last_use); +u8 prestera_acl_rule_hw_tc_get(struct prestera_acl_rule *rule); +void prestera_acl_rule_hw_tc_set(struct prestera_acl_rule *rule, u8 hw_tc); #endif /* _PRESTERA_ACL_H_ */ diff --git a/drivers/net/ethernet/marvell/prestera/prestera_flower.c b/drivers/net/ethernet/marvell/prestera/prestera_flower.c index e571ba09ec08..76f30856ac98 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_flower.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_flower.c @@ -5,6 +5,8 @@ #include "prestera_acl.h" #include "prestera_flower.h" +#define PRESTERA_HW_TC_NUM 8 + static int prestera_flower_parse_actions(struct prestera_flow_block *block, struct prestera_acl_rule *rule, struct flow_action *flow_action, @@ -30,6 +32,11 @@ static int prestera_flower_parse_actions(struct prestera_flow_block *block, case FLOW_ACTION_TRAP: a_entry.id = PRESTERA_ACL_RULE_ACTION_TRAP; break; + case FLOW_ACTION_POLICE: + a_entry.id = PRESTERA_ACL_RULE_ACTION_POLICE; + a_entry.police.rate = act->police.rate_bytes_ps; + a_entry.police.burst = act->police.burst; + break; default: NL_SET_ERR_MSG_MOD(extack, "Unsupported action"); pr_err("Unsupported action\n"); @@ -110,6 +117,17 @@ static int prestera_flower_parse(struct prestera_flow_block *block, return -EOPNOTSUPP; } + if (f->classid) { + int hw_tc = __tc_classid_to_hwtc(PRESTERA_HW_TC_NUM, f->classid); + + if (hw_tc < 0) { + NL_SET_ERR_MSG_MOD(f->common.extack, "Unsupported HW TC"); + return hw_tc; + } + + prestera_acl_rule_hw_tc_set(rule, hw_tc); + } + prestera_acl_rule_priority_set(rule, f->common.prio); if (flow_rule_match_key(f_rule, FLOW_DISSECTOR_KEY_META)) { diff --git a/drivers/net/ethernet/marvell/prestera/prestera_hw.c b/drivers/net/ethernet/marvell/prestera/prestera_hw.c index c1297859e471..2d1dfb52aca4 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_hw.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_hw.c @@ -91,6 +91,7 @@ enum { enum { PRESTERA_CMD_SWITCH_ATTR_MAC = 1, PRESTERA_CMD_SWITCH_ATTR_AGEING = 2, + PRESTERA_SWITCH_ATTR_TRAP_POLICER = 3, }; enum { @@ -319,6 +320,19 @@ struct prestera_msg_acl_action { u32 id; }; +struct prestera_msg_acl_action_ext { + u32 id; + union { + struct { + u64 rate; + u64 burst; + } police; + struct { + u64 res[3]; + } reserv; + } __packed; +}; + struct prestera_msg_acl_match { u32 type; union { @@ -354,6 +368,16 @@ struct prestera_msg_acl_rule_req { u8 n_matches; }; +struct prestera_msg_acl_rule_ext_req { + struct prestera_msg_cmd cmd; + u32 id; + u32 priority; + u16 ruleset_id; + u8 n_actions; + u8 n_matches; + u8 hw_tc; +}; + struct prestera_msg_acl_rule_resp { struct prestera_msg_ret ret; u32 id; @@ -908,6 +932,36 @@ static int prestera_hw_acl_actions_put(struct prestera_msg_acl_action *action, return 0; } +static int prestera_hw_acl_actions_ext_put(struct prestera_msg_acl_action_ext *action, + struct prestera_acl_rule *rule) +{ + struct list_head *a_list = prestera_acl_rule_action_list_get(rule); + struct prestera_acl_rule_action_entry *a_entry; + int i = 0; + + list_for_each_entry(a_entry, a_list, list) { + action[i].id = a_entry->id; + + switch (a_entry->id) { + case PRESTERA_ACL_RULE_ACTION_ACCEPT: + case PRESTERA_ACL_RULE_ACTION_DROP: + case PRESTERA_ACL_RULE_ACTION_TRAP: + /* just rule action id, no specific data */ + break; + case PRESTERA_ACL_RULE_ACTION_POLICE: + action[i].police.rate = a_entry->police.rate; + action[i].police.burst = a_entry->police.burst; + break; + default: + return -EINVAL; + } + + i++; + } + + return 0; +} + static int prestera_hw_acl_matches_put(struct prestera_msg_acl_match *match, struct prestera_acl_rule *rule) { @@ -963,9 +1017,9 @@ static int prestera_hw_acl_matches_put(struct prestera_msg_acl_match *match, return 0; } -int prestera_hw_acl_rule_add(struct prestera_switch *sw, - struct prestera_acl_rule *rule, - u32 *rule_id) +int __prestera_hw_acl_rule_add(struct prestera_switch *sw, + struct prestera_acl_rule *rule, + u32 *rule_id) { struct prestera_msg_acl_action *actions; struct prestera_msg_acl_match *matches; @@ -1017,6 +1071,71 @@ int prestera_hw_acl_rule_add(struct prestera_switch *sw, return err; } +int __prestera_hw_acl_rule_ext_add(struct prestera_switch *sw, + struct prestera_acl_rule *rule, + u32 *rule_id) +{ + struct prestera_msg_acl_action_ext *actions; + struct prestera_msg_acl_rule_ext_req *req; + struct prestera_msg_acl_match *matches; + struct prestera_msg_acl_rule_resp resp; + u8 n_actions; + u8 n_matches; + void *buff; + u32 size; + int err; + + n_actions = prestera_acl_rule_action_len(rule); + n_matches = prestera_acl_rule_match_len(rule); + + size = sizeof(*req) + sizeof(*actions) * n_actions + + sizeof(*matches) * n_matches; + + buff = kzalloc(size, GFP_KERNEL); + if (!buff) + return -ENOMEM; + + req = buff; + actions = buff + sizeof(*req); + matches = buff + sizeof(*req) + sizeof(*actions) * n_actions; + + /* put acl actions into the message */ + err = prestera_hw_acl_actions_ext_put(actions, rule); + if (err) + goto free_buff; + + /* put acl matches into the message */ + err = prestera_hw_acl_matches_put(matches, rule); + if (err) + goto free_buff; + + req->ruleset_id = prestera_acl_rule_ruleset_id_get(rule); + req->priority = prestera_acl_rule_priority_get(rule); + req->n_actions = prestera_acl_rule_action_len(rule); + req->n_matches = prestera_acl_rule_match_len(rule); + req->hw_tc = prestera_acl_rule_hw_tc_get(rule); + + err = prestera_cmd_ret(sw, PRESTERA_CMD_TYPE_ACL_RULE_ADD, + &req->cmd, size, &resp.ret, sizeof(resp)); + if (err) + goto free_buff; + + *rule_id = resp.id; +free_buff: + kfree(buff); + return err; +} + +int prestera_hw_acl_rule_add(struct prestera_switch *sw, + struct prestera_acl_rule *rule, + u32 *rule_id) +{ + if (sw->dev->fw_rev.maj == 3 && sw->dev->fw_rev.min == 0) + return __prestera_hw_acl_rule_add(sw, rule, rule_id); + + return __prestera_hw_acl_rule_ext_add(sw, rule, rule_id); +}; + int prestera_hw_acl_rule_del(struct prestera_switch *sw, u32 rule_id) { struct prestera_msg_acl_rule_req req = { diff --git a/drivers/net/ethernet/marvell/prestera/prestera_pci.c b/drivers/net/ethernet/marvell/prestera/prestera_pci.c index ce4cf51dba5a..f988603af1b6 100644 --- a/drivers/net/ethernet/marvell/prestera/prestera_pci.c +++ b/drivers/net/ethernet/marvell/prestera/prestera_pci.c @@ -15,6 +15,7 @@ #define PRESTERA_MSG_MAX_SIZE 1500 static struct prestera_fw_rev prestera_fw_supp[] = { + { 3, 1 }, { 3, 0 }, { 2, 0 } };