148 lines
4.3 KiB
C
148 lines
4.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-or-later */
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#ifndef _BR_PRIVATE_CFM_H_
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#define _BR_PRIVATE_CFM_H_
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#include "br_private.h"
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#include <uapi/linux/cfm_bridge.h>
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struct br_cfm_mep_create {
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enum br_cfm_domain domain; /* Domain for this MEP */
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enum br_cfm_mep_direction direction; /* Up or Down MEP direction */
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u32 ifindex; /* Residence port */
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};
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int br_cfm_mep_create(struct net_bridge *br,
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const u32 instance,
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struct br_cfm_mep_create *const create,
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struct netlink_ext_ack *extack);
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int br_cfm_mep_delete(struct net_bridge *br,
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const u32 instance,
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struct netlink_ext_ack *extack);
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struct br_cfm_mep_config {
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u32 mdlevel;
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u32 mepid; /* MEPID for this MEP */
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struct mac_addr unicast_mac; /* The MEP unicast MAC */
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};
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int br_cfm_mep_config_set(struct net_bridge *br,
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const u32 instance,
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const struct br_cfm_mep_config *const config,
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struct netlink_ext_ack *extack);
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struct br_cfm_maid {
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u8 data[CFM_MAID_LENGTH];
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};
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struct br_cfm_cc_config {
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/* Expected received CCM PDU MAID. */
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struct br_cfm_maid exp_maid;
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/* Expected received CCM PDU interval. */
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/* Transmitting CCM PDU interval when CCM tx is enabled. */
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enum br_cfm_ccm_interval exp_interval;
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bool enable; /* Enable/disable CCM PDU handling */
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};
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int br_cfm_cc_config_set(struct net_bridge *br,
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const u32 instance,
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const struct br_cfm_cc_config *const config,
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struct netlink_ext_ack *extack);
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int br_cfm_cc_peer_mep_add(struct net_bridge *br, const u32 instance,
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u32 peer_mep_id,
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struct netlink_ext_ack *extack);
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int br_cfm_cc_peer_mep_remove(struct net_bridge *br, const u32 instance,
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u32 peer_mep_id,
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struct netlink_ext_ack *extack);
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/* Transmitted CCM Remote Defect Indication status set.
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* This RDI is inserted in transmitted CCM PDUs if CCM transmission is enabled.
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* See br_cfm_cc_ccm_tx() with interval != BR_CFM_CCM_INTERVAL_NONE
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*/
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int br_cfm_cc_rdi_set(struct net_bridge *br, const u32 instance,
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const bool rdi, struct netlink_ext_ack *extack);
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/* OAM PDU Tx information */
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struct br_cfm_cc_ccm_tx_info {
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struct mac_addr dmac;
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/* The CCM will be transmitted for this period in seconds.
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* Call br_cfm_cc_ccm_tx before timeout to keep transmission alive.
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* When period is zero any ongoing transmission will be stopped.
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*/
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u32 period;
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bool seq_no_update; /* Update Tx CCM sequence number */
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bool if_tlv; /* Insert Interface Status TLV */
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u8 if_tlv_value; /* Interface Status TLV value */
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bool port_tlv; /* Insert Port Status TLV */
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u8 port_tlv_value; /* Port Status TLV value */
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/* Sender ID TLV ??
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* Organization-Specific TLV ??
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*/
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};
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int br_cfm_cc_ccm_tx(struct net_bridge *br, const u32 instance,
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const struct br_cfm_cc_ccm_tx_info *const tx_info,
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struct netlink_ext_ack *extack);
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struct br_cfm_mep_status {
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/* Indications that an OAM PDU has been seen. */
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bool opcode_unexp_seen; /* RX of OAM PDU with unexpected opcode */
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bool version_unexp_seen; /* RX of OAM PDU with unexpected version */
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bool rx_level_low_seen; /* Rx of OAM PDU with level low */
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};
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struct br_cfm_cc_peer_status {
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/* This CCM related status is based on the latest received CCM PDU. */
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u8 port_tlv_value; /* Port Status TLV value */
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u8 if_tlv_value; /* Interface Status TLV value */
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/* CCM has not been received for 3.25 intervals */
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u8 ccm_defect:1;
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/* (RDI == 1) for last received CCM PDU */
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u8 rdi:1;
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/* Indications that a CCM PDU has been seen. */
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u8 seen:1; /* CCM PDU received */
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u8 tlv_seen:1; /* CCM PDU with TLV received */
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/* CCM PDU with unexpected sequence number received */
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u8 seq_unexp_seen:1;
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};
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struct br_cfm_mep {
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/* list header of MEP instances */
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struct hlist_node head;
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u32 instance;
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struct br_cfm_mep_create create;
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struct br_cfm_mep_config config;
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struct br_cfm_cc_config cc_config;
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struct br_cfm_cc_ccm_tx_info cc_ccm_tx_info;
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/* List of multiple peer MEPs */
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struct hlist_head peer_mep_list;
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struct net_bridge_port __rcu *b_port;
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unsigned long ccm_tx_end;
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struct delayed_work ccm_tx_dwork;
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u32 ccm_tx_snumber;
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u32 ccm_rx_snumber;
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struct br_cfm_mep_status status;
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bool rdi;
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struct rcu_head rcu;
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};
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struct br_cfm_peer_mep {
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struct hlist_node head;
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struct br_cfm_mep *mep;
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struct delayed_work ccm_rx_dwork;
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u32 mepid;
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struct br_cfm_cc_peer_status cc_status;
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u32 ccm_rx_count_miss;
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struct rcu_head rcu;
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};
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#endif /* _BR_PRIVATE_CFM_H_ */
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