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