[linux.git] / net / bridge / br_private_cfm.h

/* SPDX-License-Identifier: GPL-2.0-or-later */

#ifndef _BR_PRIVATE_CFM_H_
#define _BR_PRIVATE_CFM_H_

#include "br_private.h"
#include <uapi/linux/cfm_bridge.h>

struct br_cfm_mep_create {
	enum br_cfm_domain domain; /* Domain for this MEP */
	enum br_cfm_mep_direction direction; /* Up or Down MEP direction */
	u32 ifindex; /* Residence port */
};

int br_cfm_mep_create(struct net_bridge *br,
		      const u32 instance,
		      struct br_cfm_mep_create *const create,
		      struct netlink_ext_ack *extack);

int br_cfm_mep_delete(struct net_bridge *br,
		      const u32 instance,
		      struct netlink_ext_ack *extack);

struct br_cfm_mep_config {
	u32 mdlevel;
	u32 mepid; /* MEPID for this MEP */
	struct mac_addr unicast_mac; /* The MEP unicast MAC */
};

int br_cfm_mep_config_set(struct net_bridge *br,
			  const u32 instance,
			  const struct br_cfm_mep_config *const config,
			  struct netlink_ext_ack *extack);

struct br_cfm_maid {
	u8 data[CFM_MAID_LENGTH];
};

struct br_cfm_cc_config {
	/* Expected received CCM PDU MAID. */
	struct br_cfm_maid exp_maid;

	/* Expected received CCM PDU interval. */
	/* Transmitting CCM PDU interval when CCM tx is enabled. */
	enum br_cfm_ccm_interval exp_interval;

	bool enable; /* Enable/disable CCM PDU handling */
};

int br_cfm_cc_config_set(struct net_bridge *br,
			 const u32 instance,
			 const struct br_cfm_cc_config *const config,
			 struct netlink_ext_ack *extack);

int br_cfm_cc_peer_mep_add(struct net_bridge *br, const u32 instance,
			   u32 peer_mep_id,
			   struct netlink_ext_ack *extack);
int br_cfm_cc_peer_mep_remove(struct net_bridge *br, const u32 instance,
			      u32 peer_mep_id,
			      struct netlink_ext_ack *extack);

/* Transmitted CCM Remote Defect Indication status set.
 * This RDI is inserted in transmitted CCM PDUs if CCM transmission is enabled.
 * See br_cfm_cc_ccm_tx() with interval != BR_CFM_CCM_INTERVAL_NONE
 */
int br_cfm_cc_rdi_set(struct net_bridge *br, const u32 instance,
		      const bool rdi, struct netlink_ext_ack *extack);

/* OAM PDU Tx information */
struct br_cfm_cc_ccm_tx_info {
	struct mac_addr dmac;
	/* The CCM will be transmitted for this period in seconds.
	 * Call br_cfm_cc_ccm_tx before timeout to keep transmission alive.
	 * When period is zero any ongoing transmission will be stopped.
	 */
	u32 period;

	bool seq_no_update; /* Update Tx CCM sequence number */
	bool if_tlv; /* Insert Interface Status TLV */
	u8 if_tlv_value; /* Interface Status TLV value */
	bool port_tlv; /* Insert Port Status TLV */
	u8 port_tlv_value; /* Port Status TLV value */
	/* Sender ID TLV ??
	 * Organization-Specific TLV ??
	 */
};

int br_cfm_cc_ccm_tx(struct net_bridge *br, const u32 instance,
		     const struct br_cfm_cc_ccm_tx_info *const tx_info,
		     struct netlink_ext_ack *extack);

struct br_cfm_mep_status {
	/* Indications that an OAM PDU has been seen. */
	bool opcode_unexp_seen; /* RX of OAM PDU with unexpected opcode */
	bool version_unexp_seen; /* RX of OAM PDU with unexpected version */
	bool rx_level_low_seen; /* Rx of OAM PDU with level low */
};

struct br_cfm_cc_peer_status {
	/* This CCM related status is based on the latest received CCM PDU. */
	u8 port_tlv_value; /* Port Status TLV value */
	u8 if_tlv_value; /* Interface Status TLV value */

	/* CCM has not been received for 3.25 intervals */
	u8 ccm_defect:1;

	/* (RDI == 1) for last received CCM PDU */
	u8 rdi:1;

	/* Indications that a CCM PDU has been seen. */
	u8 seen:1; /* CCM PDU received */
	u8 tlv_seen:1; /* CCM PDU with TLV received */
	/* CCM PDU with unexpected sequence number received */
	u8 seq_unexp_seen:1;
};

struct br_cfm_mep {
	/* list header of MEP instances */
	struct hlist_node		head;
	u32				instance;
	struct br_cfm_mep_create	create;
	struct br_cfm_mep_config	config;
	struct br_cfm_cc_config		cc_config;
	struct br_cfm_cc_ccm_tx_info	cc_ccm_tx_info;
	/* List of multiple peer MEPs */
	struct hlist_head		peer_mep_list;
	struct net_bridge_port __rcu	*b_port;
	unsigned long			ccm_tx_end;
	struct delayed_work		ccm_tx_dwork;
	u32				ccm_tx_snumber;
	u32				ccm_rx_snumber;
	struct br_cfm_mep_status	status;
	bool				rdi;
	struct rcu_head			rcu;
};

struct br_cfm_peer_mep {
	struct hlist_node		head;
	struct br_cfm_mep		*mep;
	struct delayed_work		ccm_rx_dwork;
	u32				mepid;
	struct br_cfm_cc_peer_status	cc_status;
	u32				ccm_rx_count_miss;
	struct rcu_head			rcu;
};

#endif /* _BR_PRIVATE_CFM_H_ */
Commit	Line	Data
86a14b79 HB	1	/* SPDX-License-Identifier: GPL-2.0-or-later */
	2
	3	#ifndef _BR_PRIVATE_CFM_H_
	4	#define _BR_PRIVATE_CFM_H_
	5
	6	#include "br_private.h"
	7	#include <uapi/linux/cfm_bridge.h>
	8
	9	struct br_cfm_mep_create {
	10	enum br_cfm_domain domain; /* Domain for this MEP */
	11	enum br_cfm_mep_direction direction; /* Up or Down MEP direction */
	12	u32 ifindex; /* Residence port */
	13	};
	14
	15	int br_cfm_mep_create(struct net_bridge *br,
	16	const u32 instance,
	17	struct br_cfm_mep_create *const create,
	18	struct netlink_ext_ack *extack);
	19
	20	int br_cfm_mep_delete(struct net_bridge *br,
	21	const u32 instance,
	22	struct netlink_ext_ack *extack);
	23
	24	struct br_cfm_mep_config {
	25	u32 mdlevel;
	26	u32 mepid; /* MEPID for this MEP */
	27	struct mac_addr unicast_mac; /* The MEP unicast MAC */
	28	};
	29
	30	int br_cfm_mep_config_set(struct net_bridge *br,
	31	const u32 instance,
	32	const struct br_cfm_mep_config *const config,
	33	struct netlink_ext_ack *extack);
	34
a806ad8e HB	35	struct br_cfm_maid {
	36	u8 data[CFM_MAID_LENGTH];
	37	};
	38
	39	struct br_cfm_cc_config {
	40	/* Expected received CCM PDU MAID. */
	41	struct br_cfm_maid exp_maid;
	42
	43	/* Expected received CCM PDU interval. */
	44	/* Transmitting CCM PDU interval when CCM tx is enabled. */
	45	enum br_cfm_ccm_interval exp_interval;
dc32cbb3 HB	46
dc32cbb3 HB	47	bool enable; /* Enable/disable CCM PDU handling */
a806ad8e HB	48	};
	49
	50	int br_cfm_cc_config_set(struct net_bridge *br,
	51	const u32 instance,
	52	const struct br_cfm_cc_config *const config,
	53	struct netlink_ext_ack *extack);
	54
86a14b79 HB	55	int br_cfm_cc_peer_mep_add(struct net_bridge *br, const u32 instance,
	56	u32 peer_mep_id,
	57	struct netlink_ext_ack *extack);
	58	int br_cfm_cc_peer_mep_remove(struct net_bridge *br, const u32 instance,
	59	u32 peer_mep_id,
	60	struct netlink_ext_ack *extack);
	61
a806ad8e HB	62	/* Transmitted CCM Remote Defect Indication status set.
	63	* This RDI is inserted in transmitted CCM PDUs if CCM transmission is enabled.
	64	* See br_cfm_cc_ccm_tx() with interval != BR_CFM_CCM_INTERVAL_NONE
	65	*/
	66	int br_cfm_cc_rdi_set(struct net_bridge *br, const u32 instance,
	67	const bool rdi, struct netlink_ext_ack *extack);
	68
	69	/* OAM PDU Tx information */
	70	struct br_cfm_cc_ccm_tx_info {
	71	struct mac_addr dmac;
	72	/* The CCM will be transmitted for this period in seconds.
	73	* Call br_cfm_cc_ccm_tx before timeout to keep transmission alive.
	74	* When period is zero any ongoing transmission will be stopped.
	75	*/
	76	u32 period;
	77
	78	bool seq_no_update; /* Update Tx CCM sequence number */
	79	bool if_tlv; /* Insert Interface Status TLV */
	80	u8 if_tlv_value; /* Interface Status TLV value */
	81	bool port_tlv; /* Insert Port Status TLV */
	82	u8 port_tlv_value; /* Port Status TLV value */
	83	/* Sender ID TLV ??
	84	* Organization-Specific TLV ??
	85	*/
	86	};
	87
	88	int br_cfm_cc_ccm_tx(struct net_bridge *br, const u32 instance,
	89	const struct br_cfm_cc_ccm_tx_info *const tx_info,
	90	struct netlink_ext_ack *extack);
	91
dc32cbb3 HB	92	struct br_cfm_mep_status {
	93	/* Indications that an OAM PDU has been seen. */
	94	bool opcode_unexp_seen; /* RX of OAM PDU with unexpected opcode */
	95	bool version_unexp_seen; /* RX of OAM PDU with unexpected version */
	96	bool rx_level_low_seen; /* Rx of OAM PDU with level low */
	97	};
	98
	99	struct br_cfm_cc_peer_status {
	100	/* This CCM related status is based on the latest received CCM PDU. */
	101	u8 port_tlv_value; /* Port Status TLV value */
	102	u8 if_tlv_value; /* Interface Status TLV value */
	103
	104	/* CCM has not been received for 3.25 intervals */
	105	u8 ccm_defect:1;
	106
	107	/* (RDI == 1) for last received CCM PDU */
	108	u8 rdi:1;
	109
	110	/* Indications that a CCM PDU has been seen. */
	111	u8 seen:1; /* CCM PDU received */
	112	u8 tlv_seen:1; /* CCM PDU with TLV received */
	113	/* CCM PDU with unexpected sequence number received */
	114	u8 seq_unexp_seen:1;
	115	};
	116
86a14b79 HB	117	struct br_cfm_mep {
	118	/* list header of MEP instances */
	119	struct hlist_node head;
	120	u32 instance;
	121	struct br_cfm_mep_create create;
	122	struct br_cfm_mep_config config;
a806ad8e HB	123	struct br_cfm_cc_config cc_config;
a806ad8e HB	124	struct br_cfm_cc_ccm_tx_info cc_ccm_tx_info;
86a14b79 HB	125	/* List of multiple peer MEPs */
	126	struct hlist_head peer_mep_list;
	127	struct net_bridge_port __rcu *b_port;
a806ad8e HB	128	unsigned long ccm_tx_end;
	129	struct delayed_work ccm_tx_dwork;
	130	u32 ccm_tx_snumber;
dc32cbb3 HB	131	u32 ccm_rx_snumber;
dc32cbb3 HB	132	struct br_cfm_mep_status status;
a806ad8e	133	bool rdi;
86a14b79 HB	134	struct rcu_head rcu;
	135	};
	136
	137	struct br_cfm_peer_mep {
	138	struct hlist_node head;
	139	struct br_cfm_mep *mep;
dc32cbb3	140	struct delayed_work ccm_rx_dwork;
86a14b79	141	u32 mepid;
dc32cbb3 HB	142	struct br_cfm_cc_peer_status cc_status;
dc32cbb3 HB	143	u32 ccm_rx_count_miss;
86a14b79 HB	144	struct rcu_head rcu;
	145	};
	146
	147	#endif /* _BR_PRIVATE_CFM_H_ */