diff options
Diffstat (limited to 'drivers/net/ethernet/marvell/prestera/prestera_acl.h')
| -rw-r--r-- | drivers/net/ethernet/marvell/prestera/prestera_acl.h | 209 |
1 files changed, 209 insertions, 0 deletions
diff --git a/drivers/net/ethernet/marvell/prestera/prestera_acl.h b/drivers/net/ethernet/marvell/prestera/prestera_acl.h new file mode 100644 index 000000000..a35cc0609 --- /dev/null +++ b/drivers/net/ethernet/marvell/prestera/prestera_acl.h @@ -0,0 +1,209 @@ +/* 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); +int 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_ruleset_prio_get(struct prestera_acl_ruleset *ruleset, + u32 *prio_min, u32 *prio_max); +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_ */ |