#include <linux/skbuff.h>
#include <linux/if_ether.h>
#include <linux/netdevice.h>
#include <linux/spinlock.h>
#include <linux/ethtool.h>
#include <linux/etherdevice.h>
#include <linux/if_bonding.h>
#include <linux/pkt_sched.h>
#include <net/net_namespace.h>
#include "bonding.h"
#include "bond_3ad.h"

Macros
#define	pr_fmt(fmt) KBUILD_MODNAME ": " fmt

#define	AD_SHORT_TIMEOUT 1

#define	AD_LONG_TIMEOUT 0

#define	AD_STANDBY 0x2

#define	AD_MAX_TX_IN_SECOND 3

#define	AD_COLLECTOR_MAX_DELAY 0

#define	AD_FAST_PERIODIC_TIME 1

#define	AD_SLOW_PERIODIC_TIME 30

#define	AD_SHORT_TIMEOUT_TIME (3*AD_FAST_PERIODIC_TIME)

#define	AD_LONG_TIMEOUT_TIME (3*AD_SLOW_PERIODIC_TIME)

#define	AD_CHURN_DETECTION_TIME 60

#define	AD_AGGREGATE_WAIT_TIME 2

#define	AD_STATE_LACP_ACTIVITY 0x1

#define	AD_STATE_LACP_TIMEOUT 0x2

#define	AD_STATE_AGGREGATION 0x4

#define	AD_STATE_SYNCHRONIZATION 0x8

#define	AD_STATE_COLLECTING 0x10

#define	AD_STATE_DISTRIBUTING 0x20

#define	AD_STATE_DEFAULTED 0x40

#define	AD_STATE_EXPIRED 0x80

#define	AD_PORT_BEGIN 0x1

#define	AD_PORT_LACP_ENABLED 0x2

#define	AD_PORT_ACTOR_CHURN 0x4

#define	AD_PORT_PARTNER_CHURN 0x8

#define	AD_PORT_READY 0x10

#define	AD_PORT_READY_N 0x20

#define	AD_PORT_MATCHED 0x40

#define	AD_PORT_STANDBY 0x80

#define	AD_PORT_SELECTED 0x100

#define	AD_PORT_MOVED 0x200

#define	AD_DUPLEX_KEY_BITS 0x1

#define	AD_SPEED_KEY_BITS 0x3E

#define	AD_USER_KEY_BITS 0xFFC0

#define	AD_LINK_SPEED_BITMASK_1MBPS 0x1

#define	AD_LINK_SPEED_BITMASK_10MBPS 0x2

#define	AD_LINK_SPEED_BITMASK_100MBPS 0x4

#define	AD_LINK_SPEED_BITMASK_1000MBPS 0x8

#define	AD_LINK_SPEED_BITMASK_10000MBPS 0x10

#define	MAC_ADDRESS_COMPARE(A, B) memcmp(A, B, ETH_ALEN)

#define	AD_AGGREGATOR_SELECTION_TIMER 8

Functions
void	bond_3ad_initiate_agg_selection (struct bonding *bond, int timeout)

void	bond_3ad_initialize (struct bonding *bond, u16 tick_resolution)

int	bond_3ad_bind_slave (struct slave *slave)

void	bond_3ad_unbind_slave (struct slave *slave)

void	bond_3ad_state_machine_handler (struct work_struct *work)

void	bond_3ad_adapter_speed_changed (struct slave *slave)

void	bond_3ad_adapter_duplex_changed (struct slave *slave)

void	bond_3ad_handle_link_change (struct slave *slave, char link)

int	bond_3ad_set_carrier (struct bonding *bond)

int	bond_3ad_get_active_agg_info (struct bonding bond, struct ad_info ad_info)

int	bond_3ad_xmit_xor (struct sk_buff skb, struct net_device dev)

int	bond_3ad_lacpdu_recv (const struct sk_buff skb, struct bonding bond, struct slave *slave)

void	bond_3ad_update_lacp_rate (struct bonding *bond)

Macro Definition Documentation

#define AD_AGGREGATE_WAIT_TIME 2

Definition at line 50 of file bond_3ad.c.

#define AD_AGGREGATOR_SELECTION_TIMER 8

Definition at line 1843 of file bond_3ad.c.

#define AD_CHURN_DETECTION_TIME 60

Definition at line 49 of file bond_3ad.c.

#define AD_COLLECTOR_MAX_DELAY 0

Definition at line 42 of file bond_3ad.c.

#define AD_DUPLEX_KEY_BITS 0x1

Definition at line 81 of file bond_3ad.c.

#define AD_FAST_PERIODIC_TIME 1

Definition at line 45 of file bond_3ad.c.

#define AD_LINK_SPEED_BITMASK_10000MBPS 0x10

Definition at line 90 of file bond_3ad.c.

#define AD_LINK_SPEED_BITMASK_1000MBPS 0x8

Definition at line 89 of file bond_3ad.c.

#define AD_LINK_SPEED_BITMASK_100MBPS 0x4

Definition at line 88 of file bond_3ad.c.

#define AD_LINK_SPEED_BITMASK_10MBPS 0x2

Definition at line 87 of file bond_3ad.c.

#define AD_LINK_SPEED_BITMASK_1MBPS 0x1

Definition at line 86 of file bond_3ad.c.

#define AD_LONG_TIMEOUT 0

Definition at line 39 of file bond_3ad.c.

#define AD_LONG_TIMEOUT_TIME (3*AD_SLOW_PERIODIC_TIME)

Definition at line 48 of file bond_3ad.c.

#define AD_MAX_TX_IN_SECOND 3

Definition at line 41 of file bond_3ad.c.

#define AD_PORT_ACTOR_CHURN 0x4

Definition at line 65 of file bond_3ad.c.

#define AD_PORT_BEGIN 0x1

Definition at line 63 of file bond_3ad.c.

#define AD_PORT_LACP_ENABLED 0x2

Definition at line 64 of file bond_3ad.c.

#define AD_PORT_MATCHED 0x40

Definition at line 69 of file bond_3ad.c.

#define AD_PORT_MOVED 0x200

Definition at line 72 of file bond_3ad.c.

#define AD_PORT_PARTNER_CHURN 0x8

Definition at line 66 of file bond_3ad.c.

#define AD_PORT_READY 0x10

Definition at line 67 of file bond_3ad.c.

#define AD_PORT_READY_N 0x20

Definition at line 68 of file bond_3ad.c.

#define AD_PORT_SELECTED 0x100

Definition at line 71 of file bond_3ad.c.

#define AD_PORT_STANDBY 0x80

Definition at line 70 of file bond_3ad.c.

#define AD_SHORT_TIMEOUT 1

Definition at line 38 of file bond_3ad.c.

#define AD_SHORT_TIMEOUT_TIME (3*AD_FAST_PERIODIC_TIME)

Definition at line 47 of file bond_3ad.c.

#define AD_SLOW_PERIODIC_TIME 30

Definition at line 46 of file bond_3ad.c.

#define AD_SPEED_KEY_BITS 0x3E

Definition at line 82 of file bond_3ad.c.

#define AD_STANDBY 0x2

Definition at line 40 of file bond_3ad.c.

#define AD_STATE_AGGREGATION 0x4

Definition at line 55 of file bond_3ad.c.

#define AD_STATE_COLLECTING 0x10

Definition at line 57 of file bond_3ad.c.

#define AD_STATE_DEFAULTED 0x40

Definition at line 59 of file bond_3ad.c.

#define AD_STATE_DISTRIBUTING 0x20

Definition at line 58 of file bond_3ad.c.

#define AD_STATE_EXPIRED 0x80

Definition at line 60 of file bond_3ad.c.

#define AD_STATE_LACP_ACTIVITY 0x1

Definition at line 53 of file bond_3ad.c.

#define AD_STATE_LACP_TIMEOUT 0x2

Definition at line 54 of file bond_3ad.c.

#define AD_STATE_SYNCHRONIZATION 0x8

Definition at line 56 of file bond_3ad.c.

#define AD_USER_KEY_BITS 0xFFC0

Definition at line 83 of file bond_3ad.c.

#define MAC_ADDRESS_COMPARE	(	A,
		B
	)	memcmp(A, B, ETH_ALEN)

Definition at line 94 of file bond_3ad.c.

#define pr_fmt ( fmt ) KBUILD_MODNAME ": " fmt

Definition at line 23 of file bond_3ad.c.

Function Documentation

void bond_3ad_adapter_duplex_changed ( struct slave * slave )

bond_3ad_adapter_duplex_changed - handle a slave's duplex change indication : slave struct to work on

Handle reselection of aggregator (if needed) for this port.

Definition at line 2262 of file bond_3ad.c.

void bond_3ad_adapter_speed_changed ( struct slave * slave )

bond_3ad_adapter_speed_changed - handle a slave's speed change indication : slave struct to work on

Handle reselection of aggregator (if needed) for this port.

Definition at line 2234 of file bond_3ad.c.

int bond_3ad_bind_slave ( struct slave * slave )

bond_3ad_bind_slave - initialize a slave's port : slave struct to work on

Returns: 0 on success < 0 on error

Definition at line 1893 of file bond_3ad.c.

int bond_3ad_get_active_agg_info	(	struct bonding *	bond,
		struct ad_info *	ad_info
	)

bond_3ad_get_active_agg_info - get information of the active aggregator : bonding struct to work on : ad_info struct to fill with the bond's info

Returns: 0 on success < 0 on error

Definition at line 2371 of file bond_3ad.c.

void bond_3ad_handle_link_change	(	struct slave *	slave,
		char	link
	)

bond_3ad_handle_link_change - handle a slave's link status change indication : slave struct to work on : whether the link is now up or down

Handle reselection of aggregator (if needed) for this port.

Definition at line 2291 of file bond_3ad.c.

void bond_3ad_initialize	(	struct bonding *	bond,
		u16	tick_resolution
	)

bond_3ad_initialize - initialize a bond's 802.3ad parameters and structures : bonding struct to work on : tick duration (millisecond resolution)

Can be called only after the mac address of the bond is set.

Definition at line 1866 of file bond_3ad.c.

void bond_3ad_initiate_agg_selection	(	struct bonding *	bond,
		int	timeout
	)

Definition at line 1852 of file bond_3ad.c.

int bond_3ad_lacpdu_recv	(	const struct sk_buff *	skb,
		struct bonding *	bond,
		struct slave *	slave
	)

Definition at line 2463 of file bond_3ad.c.

int bond_3ad_set_carrier ( struct bonding * bond )

Definition at line 2337 of file bond_3ad.c.

void bond_3ad_state_machine_handler ( struct work_struct * work )

bond_3ad_state_machine_handler - handle state machines timeout : bonding struct to work on

The state machine handling concept in this module is to check every tick which state machine should operate any function. The execution order is round robin, so when we have an interaction between state machines, the reply of one to each other might be delayed until next tick.

This function also complete the initialization when the agg_select_timer times out, and it selects an aggregator for the ports that are yet not related to any aggregator, and selects the active aggregator for a bond.

Definition at line 2104 of file bond_3ad.c.

void bond_3ad_unbind_slave ( struct slave * slave )

bond_3ad_unbind_slave - deinitialize a slave's port : slave struct to work on

Search for the aggregator that is related to this port, remove the aggregator and assign another aggregator for other port related to it (if any), and remove the port.

Definition at line 1961 of file bond_3ad.c.

void bond_3ad_update_lacp_rate ( struct bonding * bond )

Definition at line 2490 of file bond_3ad.c.

int bond_3ad_xmit_xor	(	struct sk_buff *	skb,
		struct net_device *	dev
	)

Definition at line 2395 of file bond_3ad.c.

Macros

Functions

Macro Definition Documentation

Function Documentation