From 5ba9744aac6d42da1e56357aca951b52f86cfacb Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Thu, 2 Sep 2021 20:26:33 +0200
Subject: device: add support for configuring bonding devices

Supported options:

- ports: member devices
- policy: bonding policy
	supported values:
	- balance-rr
	- active-backup
	- balance-xor
	- broadcast
	- 802.3ad
	- balance-tlb
	- balance-alb
- xmit_hash_policy: slave selection tx hash policy
	supported values:
	- layer2
	- layer2+3
	- layer3+4
	- encap2+3
	- encap3+4
- all_ports_active: allow receiving on inactive ports
- min_links: minimum number of active links
- ad_actor_system: LACPDU exchange MAC address
- ad_actor_sys_prio: LACPDU priority value
- ad_select: 802.3ad aggregation logic
	supported values:
	- stable
	- bandwidth
	- count
- lacp_rate: 802.3ad LACPDU packet rate
	supported values:
	- slow (every 30 seconds)
	- fast (every second)
- packets_per_port: number of packets before switching
  ports (balance-rr mode).
- lp_interval: number of seconds between sent learning packets
- dynamic_lb: distribute traffic according to port load
- resend_igmp: number if IGMP membership updates after failover event
- num_peer_notif: number of tx unsolicited ARP/NA after failover event
- primary: name of the primary port
- primary_reselect: primary port reselection policy
	supported values:
	- always
	- better
	- failure
- failover_mac: MAC address selection policy
	supported values:
	- none
	- active
	- follow
- monitor_mode: select ARP or MII link monitor:
	supported values:
	- arp
	- mii
- monitor_interval: link monitor update interval (msec)
- arp_target: ARP monitor target IP address (list)
- arp_all_targets: all targets must be reachable to consider the link valid
- arp_validate: ARP validation policy
	supported values:
	- none
	- active
	- backup
	- all
	- filter
	- filter_active
	- filter_backup
- use_carrier: use carrier status instead of MII ioctl result
- updelay: delay before enabling port after MII link up event (msec)
- downdelay: delay before disabling port after MII link down event (msec)

Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
 system.h | 43 +++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

(limited to 'system.h')

diff --git a/system.h b/system.h
index b6eda7e..be90f65 100644
--- a/system.h
+++ b/system.h
@@ -184,6 +184,44 @@ struct vlandev_config {
 	struct vlist_simple_tree egress_qos_mapping_list;  /* list of struct vlan_qos_mapping */
 };
 
+enum bonding_mode {
+	BONDING_MODE_BALANCE_RR,
+	BONDING_MODE_ACTIVE_BACKUP,
+	BONDING_MODE_BALANCE_XOR,
+	BONDING_MODE_BROADCAST,
+	BONDING_MODE_8023AD,
+	BONDING_MODE_BALANCE_TLB,
+	BONDING_MODE_BALANCE_ALB,
+	__BONDING_MODE_MAX,
+};
+
+struct bonding_config {
+	enum bonding_mode policy;
+	const char *xmit_hash_policy;
+	bool all_ports_active;
+	int min_links;
+	const char *ad_actor_system;
+	int ad_actor_sys_prio;
+	const char *ad_select;
+	const char *lacp_rate;
+	int packets_per_port;
+	int lp_interval;
+	bool dynamic_lb;
+	int resend_igmp;
+	int num_peer_notif;
+	const char *primary;
+	const char *primary_reselect;
+	const char *failover_mac;
+	bool monitor_arp;
+	int monitor_interval;
+	struct blob_attr *arp_target;
+	bool arp_all_targets;
+	const char *arp_validate;
+	bool use_carrier;
+	int updelay;
+	int downdelay;
+};
+
 static inline int system_get_addr_family(unsigned int flags)
 {
 	if ((flags & DEVADDR_FAMILY) == DEVADDR_INET6)
@@ -200,6 +238,8 @@ static inline int system_get_addr_len(unsigned int flags)
 		return sizeof(struct in6_addr);
 }
 
+extern const char * const bonding_policy_str[__BONDING_MODE_MAX];
+
 int system_init(void);
 
 int system_bridge_addbr(struct device *bridge, struct bridge_config *cfg);
@@ -210,6 +250,9 @@ int system_bridge_vlan(const char *iface, uint16_t vid, bool add, unsigned int v
 int system_bridge_vlan_check(struct device *dev, char *ifname);
 void system_bridge_set_stp_state(struct device *dev, bool val);
 
+int system_bonding_set_device(struct device *dev, struct bonding_config *cfg);
+int system_bonding_set_port(struct device *dev, struct device *port, bool add, bool primary);
+
 int system_macvlan_add(struct device *macvlan, struct device *dev, struct macvlan_config *cfg);
 int system_macvlan_del(struct device *macvlan);
 
-- 
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