210 lines
6.4 KiB
C
210 lines
6.4 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0 */
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/* Copyright (c) 2020-2021 Marvell International Ltd. All rights reserved. */
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#ifndef _PRESTERA_ACL_H_
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#define _PRESTERA_ACL_H_
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#include <linux/types.h>
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#include "prestera_counter.h"
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#define PRESTERA_ACL_KEYMASK_PCL_ID 0x3FF
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#define PRESTERA_ACL_KEYMASK_PCL_ID_USER \
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(PRESTERA_ACL_KEYMASK_PCL_ID & 0x00FF)
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#define PRESTERA_ACL_KEYMASK_PCL_ID_CHAIN \
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(PRESTERA_ACL_KEYMASK_PCL_ID & 0xFF00)
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#define PRESTERA_ACL_CHAIN_MASK \
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(PRESTERA_ACL_KEYMASK_PCL_ID >> 8)
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#define PRESTERA_ACL_PCL_ID_MAKE(uid, chain_id) \
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(((uid) & PRESTERA_ACL_KEYMASK_PCL_ID_USER) | \
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(((chain_id) << 8) & PRESTERA_ACL_KEYMASK_PCL_ID_CHAIN))
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#define rule_match_set_n(match_p, type, val_p, size) \
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memcpy(&(match_p)[PRESTERA_ACL_RULE_MATCH_TYPE_##type], \
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val_p, size)
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#define rule_match_set(match_p, type, val) \
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memcpy(&(match_p)[PRESTERA_ACL_RULE_MATCH_TYPE_##type], \
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&(val), sizeof(val))
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enum prestera_acl_match_type {
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PRESTERA_ACL_RULE_MATCH_TYPE_PCL_ID,
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PRESTERA_ACL_RULE_MATCH_TYPE_ETH_TYPE,
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PRESTERA_ACL_RULE_MATCH_TYPE_ETH_DMAC_0,
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PRESTERA_ACL_RULE_MATCH_TYPE_ETH_DMAC_1,
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PRESTERA_ACL_RULE_MATCH_TYPE_ETH_SMAC_0,
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PRESTERA_ACL_RULE_MATCH_TYPE_ETH_SMAC_1,
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PRESTERA_ACL_RULE_MATCH_TYPE_IP_PROTO,
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PRESTERA_ACL_RULE_MATCH_TYPE_SYS_PORT,
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PRESTERA_ACL_RULE_MATCH_TYPE_SYS_DEV,
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PRESTERA_ACL_RULE_MATCH_TYPE_IP_SRC,
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PRESTERA_ACL_RULE_MATCH_TYPE_IP_DST,
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PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_SRC,
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PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_DST,
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PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_RANGE_SRC,
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PRESTERA_ACL_RULE_MATCH_TYPE_L4_PORT_RANGE_DST,
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PRESTERA_ACL_RULE_MATCH_TYPE_VLAN_ID,
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PRESTERA_ACL_RULE_MATCH_TYPE_VLAN_TPID,
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PRESTERA_ACL_RULE_MATCH_TYPE_ICMP_TYPE,
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PRESTERA_ACL_RULE_MATCH_TYPE_ICMP_CODE,
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__PRESTERA_ACL_RULE_MATCH_TYPE_MAX
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};
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enum prestera_acl_rule_action {
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PRESTERA_ACL_RULE_ACTION_ACCEPT = 0,
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PRESTERA_ACL_RULE_ACTION_DROP = 1,
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PRESTERA_ACL_RULE_ACTION_TRAP = 2,
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PRESTERA_ACL_RULE_ACTION_JUMP = 5,
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PRESTERA_ACL_RULE_ACTION_COUNT = 7,
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PRESTERA_ACL_RULE_ACTION_POLICE = 8,
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PRESTERA_ACL_RULE_ACTION_MAX
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};
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enum {
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PRESTERA_ACL_IFACE_TYPE_PORT,
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PRESTERA_ACL_IFACE_TYPE_INDEX
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};
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struct prestera_acl_match {
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__be32 key[__PRESTERA_ACL_RULE_MATCH_TYPE_MAX];
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__be32 mask[__PRESTERA_ACL_RULE_MATCH_TYPE_MAX];
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};
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struct prestera_acl_action_jump {
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u32 index;
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};
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struct prestera_acl_action_police {
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u32 id;
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};
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struct prestera_acl_action_count {
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u32 id;
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};
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struct prestera_acl_rule_entry_key {
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u32 prio;
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struct prestera_acl_match match;
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};
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struct prestera_acl_hw_action_info {
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enum prestera_acl_rule_action id;
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union {
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struct prestera_acl_action_police police;
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struct prestera_acl_action_count count;
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struct prestera_acl_action_jump jump;
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};
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};
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/* This struct (arg) used only to be passed as parameter for
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* acl_rule_entry_create. Must be flat. Can contain object keys, which will be
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* resolved to object links, before saving to acl_rule_entry struct
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*/
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struct prestera_acl_rule_entry_arg {
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u32 vtcam_id;
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struct {
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struct {
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u8 valid:1;
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} accept, drop, trap;
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struct {
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struct prestera_acl_action_jump i;
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u8 valid:1;
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} jump;
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struct {
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u8 valid:1;
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u64 rate;
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u64 burst;
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bool ingress;
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} police;
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struct {
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u8 valid:1;
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u32 client;
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} count;
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};
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};
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struct prestera_acl_rule {
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struct rhash_head ht_node; /* Member of acl HT */
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struct list_head list;
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struct prestera_acl_ruleset *ruleset;
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struct prestera_acl_ruleset *jump_ruleset;
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unsigned long cookie;
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u32 chain_index;
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u32 priority;
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struct prestera_acl_rule_entry_key re_key;
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struct prestera_acl_rule_entry_arg re_arg;
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struct prestera_acl_rule_entry *re;
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};
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struct prestera_acl_iface {
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union {
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struct prestera_port *port;
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u32 index;
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};
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u8 type;
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};
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struct prestera_acl;
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struct prestera_switch;
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struct prestera_flow_block;
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int prestera_acl_init(struct prestera_switch *sw);
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void prestera_acl_fini(struct prestera_switch *sw);
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struct prestera_acl_rule *
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prestera_acl_rule_create(struct prestera_acl_ruleset *ruleset,
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unsigned long cookie, u32 chain_index);
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void prestera_acl_rule_priority_set(struct prestera_acl_rule *rule,
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u32 priority);
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void prestera_acl_rule_destroy(struct prestera_acl_rule *rule);
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struct prestera_acl_rule *
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prestera_acl_rule_lookup(struct prestera_acl_ruleset *ruleset,
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unsigned long cookie);
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int prestera_acl_rule_add(struct prestera_switch *sw,
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struct prestera_acl_rule *rule);
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void prestera_acl_rule_del(struct prestera_switch *sw,
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struct prestera_acl_rule *rule);
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int prestera_acl_rule_get_stats(struct prestera_acl *acl,
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struct prestera_acl_rule *rule,
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u64 *packets, u64 *bytes, u64 *last_use);
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struct prestera_acl_rule_entry *
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prestera_acl_rule_entry_find(struct prestera_acl *acl,
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struct prestera_acl_rule_entry_key *key);
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void prestera_acl_rule_entry_destroy(struct prestera_acl *acl,
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struct prestera_acl_rule_entry *e);
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struct prestera_acl_rule_entry *
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prestera_acl_rule_entry_create(struct prestera_acl *acl,
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struct prestera_acl_rule_entry_key *key,
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struct prestera_acl_rule_entry_arg *arg);
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struct prestera_acl_ruleset *
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prestera_acl_ruleset_get(struct prestera_acl *acl,
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struct prestera_flow_block *block,
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u32 chain_index);
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struct prestera_acl_ruleset *
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prestera_acl_ruleset_lookup(struct prestera_acl *acl,
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struct prestera_flow_block *block,
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u32 chain_index);
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int prestera_acl_ruleset_keymask_set(struct prestera_acl_ruleset *ruleset,
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void *keymask);
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bool prestera_acl_ruleset_is_offload(struct prestera_acl_ruleset *ruleset);
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int prestera_acl_ruleset_offload(struct prestera_acl_ruleset *ruleset);
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void prestera_acl_ruleset_put(struct prestera_acl_ruleset *ruleset);
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int prestera_acl_ruleset_bind(struct prestera_acl_ruleset *ruleset,
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struct prestera_port *port);
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int prestera_acl_ruleset_unbind(struct prestera_acl_ruleset *ruleset,
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struct prestera_port *port);
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u32 prestera_acl_ruleset_index_get(const struct prestera_acl_ruleset *ruleset);
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void prestera_acl_ruleset_prio_get(struct prestera_acl_ruleset *ruleset,
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u32 *prio_min, u32 *prio_max);
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void
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prestera_acl_rule_keymask_pcl_id_set(struct prestera_acl_rule *rule,
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u16 pcl_id);
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int prestera_acl_vtcam_id_get(struct prestera_acl *acl, u8 lookup, u8 dir,
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void *keymask, u32 *vtcam_id);
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int prestera_acl_vtcam_id_put(struct prestera_acl *acl, u32 vtcam_id);
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int prestera_acl_chain_to_client(u32 chain_index, bool ingress, u32 *client);
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#endif /* _PRESTERA_ACL_H_ */
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