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Data Structures
struct	l2fib_main_t

struct	l2fib_entry_key_t

struct	l2fib_seq_num_t

struct	l2fib_entry_result_t_

Macros
#define	L2FIB_NUM_BUCKETS (64 * 1024)

#define	L2FIB_MEMORY_SIZE (512<<20)

#define	L2FIB_AGE_SCAN_INTERVAL (60.0)

#define	L2FIB_EVENT_SCAN_DELAY_DEFAULT (0.1)

#define	L2FIB_EVENT_MAX_MACS_DEFAULT (100)

#define	L2FIB_EVENT_LEARN_LIMIT_DEFAULT (1000)

#define	foreach_l2fib_entry_result_attr
	Flags associated with an L2 Fib Entry. More...

Typedefs
typedef enum l2fib_entry_result_flags_t_	l2fib_entry_result_flags_t

typedef struct l2fib_entry_result_t_	l2fib_entry_result_t

Enumerations
enum	l2fib_entry_result_flags_t_ { L2FIB_ENTRY_RESULT_FLAG_NONE = 0, foreach_l2fib_entry_result_attr }

enum	l2_mac_event_action_t { MAC_EVENT_ACTION_ADD = 0, MAC_EVENT_ACTION_DELETE = 1, MAC_EVENT_ACTION_MOVE = 2 }

Functions
	STATIC_ASSERT_SIZEOF (l2fib_entry_key_t, 8)

	STATIC_ASSERT_SIZEOF (l2fib_entry_result_flags_t, 1)

u8 *	format_l2fib_entry_result_flags (u8 s, va_list args)

	STATIC_ASSERT_SIZEOF (l2fib_entry_result_t, 8)

static foreach_l2fib_entry_result_attr void	l2fib_entry_result_set_bits (l2fib_entry_result_t *r, l2fib_entry_result_flags_t bits)

static void	l2fib_entry_result_clear_bits (l2fib_entry_result_t *r, l2fib_entry_result_flags_t bits)

static u32	l2fib_compute_hash_bucket (l2fib_entry_key_t *key)
	Compute the hash for the given key and return the corresponding bucket index. More...

static u64	l2fib_make_key (const u8 *mac_address, u16 bd_index)
	make address sanitizer skip this: The 6-Bytes mac-address is cast into an 8-Bytes u64, with 2 additional Bytes. More...

static_always_inline void	l2fib_lookup_1 (BVT(clib_bihash) mac_table, l2fib_entry_key_t cached_key, l2fib_entry_result_t cached_result, u8 mac0, u16 bd_index0, l2fib_entry_key_t key0, l2fib_entry_result_t result0)
	Lookup the entry for mac and bd_index in the mac table for 1 packet. More...

static_always_inline void	l2fib_lookup_2 (BVT(clib_bihash) mac_table, l2fib_entry_key_t cached_key, l2fib_entry_result_t cached_result, u8 mac0, u8 mac1, u16 bd_index0, u16 bd_index1, l2fib_entry_key_t key0, l2fib_entry_key_t key1, l2fib_entry_result_t result0, l2fib_entry_result_t *result1)
	Lookup the entry for mac and bd_index in the mac table for 2 packets. More...

static_always_inline void	l2fib_lookup_4 (BVT(clib_bihash) mac_table, l2fib_entry_key_t cached_key, l2fib_entry_result_t cached_result, const u8 mac0, const u8 mac1, const u8 mac2, const u8 mac3, u16 bd_index0, u16 bd_index1, u16 bd_index2, u16 bd_index3, l2fib_entry_key_t key0, l2fib_entry_key_t key1, l2fib_entry_key_t key2, l2fib_entry_key_t key3, l2fib_entry_result_t result0, l2fib_entry_result_t result1, l2fib_entry_result_t result2, l2fib_entry_result_t *result3)

void	l2fib_clear_table (void)

void	l2fib_add_entry (const u8 *mac, u32 bd_index, u32 sw_if_index, l2fib_entry_result_flags_t flags)
	Add an entry to the l2fib. More...

static void	l2fib_add_filter_entry (const u8 *mac, u32 bd_index)

u32	l2fib_del_entry (const u8 *mac, u32 bd_index, u32 sw_if_index)
	Delete an entry from the l2fib. More...

void	l2fib_start_ager_scan (vlib_main_t *vm)
	Kick off ager to scan MACs to age/delete MAC entries. More...

void	l2fib_flush_int_mac (vlib_main_t *vm, u32 sw_if_index)
	Flush all non static MACs from an interface. More...

void	l2fib_flush_bd_mac (vlib_main_t *vm, u32 bd_index)
	Flush all non static MACs in a bridge domain. More...

void	l2fib_flush_all_mac (vlib_main_t *vm)
	Flush all non static MACs - flushes all valid BDs. More...

void	l2fib_table_dump (u32 bd_index, l2fib_entry_key_t l2fe_key, l2fib_entry_result_t l2fe_res)

u8 *	format_vnet_sw_if_index_name_with_NA (u8 s, va_list args)
	Format sw_if_index. More...

static_always_inline u8 *	l2fib_swif_seq_num (u32 sw_if_index)

static_always_inline u8 *	l2fib_valid_swif_seq_num (u32 sw_if_index)

	BVT (clib_bihash) *get_mac_table(void)

Variables
l2fib_main_t	l2fib_main

Macro Definition Documentation

◆ foreach_l2fib_entry_result_attr

#define foreach_l2fib_entry_result_attr

Value:

_(STATIC,  0, "static")                     \
  _(AGE_NOT, 1, "age-not")                    \
  _(BVI,     2, "bvi")                        \
  _(FILTER,  3, "filter")                     \
  _(LRN_EVT, 4, "learn-event")                \
  _(LRN_MOV, 5, "learn-move")

Flags associated with an L2 Fib Entry.

static mac, no MAC move
not subject to age
mac is for a bridged virtual interface
drop packets to/from this mac
MAC learned to be sent in L2 MAC event -MAC learned is a MAC move

Definition at line 114 of file l2_fib.h.

◆ L2FIB_AGE_SCAN_INTERVAL

#define L2FIB_AGE_SCAN_INTERVAL (60.0)

Definition at line 31 of file l2_fib.h.

◆ L2FIB_EVENT_LEARN_LIMIT_DEFAULT

#define L2FIB_EVENT_LEARN_LIMIT_DEFAULT (1000)

Definition at line 40 of file l2_fib.h.

◆ L2FIB_EVENT_MAX_MACS_DEFAULT

#define L2FIB_EVENT_MAX_MACS_DEFAULT (100)

Definition at line 37 of file l2_fib.h.

◆ L2FIB_EVENT_SCAN_DELAY_DEFAULT

#define L2FIB_EVENT_SCAN_DELAY_DEFAULT (0.1)

Definition at line 34 of file l2_fib.h.

◆ L2FIB_MEMORY_SIZE

#define L2FIB_MEMORY_SIZE (512<<20)

Definition at line 28 of file l2_fib.h.

◆ L2FIB_NUM_BUCKETS

#define L2FIB_NUM_BUCKETS (64 * 1024)

Definition at line 27 of file l2_fib.h.

Typedef Documentation

◆ l2fib_entry_result_flags_t

typedef enum l2fib_entry_result_flags_t_ l2fib_entry_result_flags_t

◆ l2fib_entry_result_t

typedef struct l2fib_entry_result_t_ l2fib_entry_result_t

Enumeration Type Documentation

◆ l2_mac_event_action_t

enum l2_mac_event_action_t

Enumerator
MAC_EVENT_ACTION_ADD
MAC_EVENT_ACTION_DELETE
MAC_EVENT_ACTION_MOVE

Definition at line 191 of file l2_fib.h.

◆ l2fib_entry_result_flags_t_

enum l2fib_entry_result_flags_t_

Enumerator
L2FIB_ENTRY_RESULT_FLAG_NONE
foreach_l2fib_entry_result_attr

Definition at line 122 of file l2_fib.h.

Function Documentation

◆ BVT()

BVT ( clib_bihash )

Definition at line 968 of file l2_fib.c.

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◆ format_l2fib_entry_result_flags()

u8* format_l2fib_entry_result_flags	(	u8 *	s,
		va_list *	args
	)

Definition at line 58 of file l2_fib.c.

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◆ format_vnet_sw_if_index_name_with_NA()

u8* format_vnet_sw_if_index_name_with_NA	(	u8 *	s,
		va_list *	args
	)

Format sw_if_index.

If the value is ~0, use the text "N/A"

Definition at line 91 of file l2_fib.c.

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◆ l2fib_add_entry()

void l2fib_add_entry	(	const u8 *	mac,
		u32	bd_index,
		u32	sw_if_index,
		l2fib_entry_result_flags_t	flags
	)

Add an entry to the l2fib.

If the entry already exists then overwrite it

Definition at line 401 of file l2_fib.c.

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◆ l2fib_add_filter_entry()

static void l2fib_add_filter_entry	(	const u8 *	mac,
		u32	bd_index
	)

inlinestatic

Definition at line 433 of file l2_fib.h.

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◆ l2fib_clear_table()

void l2fib_clear_table ( void )

Definition at line 343 of file l2_fib.c.

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◆ l2fib_compute_hash_bucket()

static u32 l2fib_compute_hash_bucket ( l2fib_entry_key_t * key )

inlinestatic

Compute the hash for the given key and return the corresponding bucket index.

Definition at line 203 of file l2_fib.h.

◆ l2fib_del_entry()

u32 l2fib_del_entry	(	const u8 *	mac,
		u32	bd_index,
		u32	sw_if_index
	)

Delete an entry from the l2fib.

Return 0 if the entry was deleted, or 1 it was not found or if sw_if_index is non-zero and does not match that in the entry.

Definition at line 685 of file l2_fib.c.

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◆ l2fib_entry_result_clear_bits()

static void l2fib_entry_result_clear_bits	(	l2fib_entry_result_t *	r,
		l2fib_entry_result_flags_t	bits
	)

inlinestatic

Definition at line 184 of file l2_fib.h.

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◆ l2fib_entry_result_set_bits()

static foreach_l2fib_entry_result_attr void l2fib_entry_result_set_bits	(	l2fib_entry_result_t *	r,
		l2fib_entry_result_flags_t	bits
	)

inlinestatic

Definition at line 177 of file l2_fib.h.

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◆ l2fib_flush_all_mac()

void l2fib_flush_all_mac ( vlib_main_t * vm )

Flush all non static MACs - flushes all valid BDs.

Definition at line 826 of file l2_fib.c.

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◆ l2fib_flush_bd_mac()

void l2fib_flush_bd_mac	(	vlib_main_t *	vm,
		u32	bd_index
	)

Flush all non static MACs in a bridge domain.

Definition at line 815 of file l2_fib.c.

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◆ l2fib_flush_int_mac()

void l2fib_flush_int_mac	(	vlib_main_t *	vm,
		u32	sw_if_index
	)

Flush all non static MACs from an interface.

Definition at line 805 of file l2_fib.c.

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◆ l2fib_lookup_1()

static_always_inline void l2fib_lookup_1	(	BVT(clib_bihash) *	mac_table,
		l2fib_entry_key_t *	cached_key,
		l2fib_entry_result_t *	cached_result,
		u8 *	mac0,
		u16	bd_index0,
		l2fib_entry_key_t *	key0,
		l2fib_entry_result_t *	result0
	)

Lookup the entry for mac and bd_index in the mac table for 1 packet.

Cached_key and cached_result are used as a one-entry cache. The function reads and updates them as needed.

mac0 and bd_index0 are the keys. The entry is written to result0. If the entry was not found, result0 is set to ~0.

key0 return with the computed key, convenient if the entry needs, to be updated afterward.

Definition at line 265 of file l2_fib.h.

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◆ l2fib_lookup_2()

static_always_inline void l2fib_lookup_2	(	BVT(clib_bihash) *	mac_table,
		l2fib_entry_key_t *	cached_key,
		l2fib_entry_result_t *	cached_result,
		u8 *	mac0,
		u8 *	mac1,
		u16	bd_index0,
		u16	bd_index1,
		l2fib_entry_key_t *	key0,
		l2fib_entry_key_t *	key1,
		l2fib_entry_result_t *	result0,
		l2fib_entry_result_t *	result1
	)

Lookup the entry for mac and bd_index in the mac table for 2 packets.

The lookups for the two packets are interleaved.

Cached_key and cached_result are used as a one-entry cache. The function reads and updates them as needed.

mac0 and bd_index0 are the keys. The entry is written to result0. If the entry was not found, result0 is set to ~0. The same holds for mac1/bd_index1/result1.

Definition at line 309 of file l2_fib.h.

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◆ l2fib_lookup_4()

static_always_inline void l2fib_lookup_4	(	BVT(clib_bihash) *	mac_table,
		l2fib_entry_key_t *	cached_key,
		l2fib_entry_result_t *	cached_result,
		const u8 *	mac0,
		const u8 *	mac1,
		const u8 *	mac2,
		const u8 *	mac3,
		u16	bd_index0,
		u16	bd_index1,
		u16	bd_index2,
		u16	bd_index3,
		l2fib_entry_key_t *	key0,
		l2fib_entry_key_t *	key1,
		l2fib_entry_key_t *	key2,
		l2fib_entry_key_t *	key3,
		l2fib_entry_result_t *	result0,
		l2fib_entry_result_t *	result1,
		l2fib_entry_result_t *	result2,
		l2fib_entry_result_t *	result3
	)

Definition at line 357 of file l2_fib.h.

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◆ l2fib_make_key()

static u64 l2fib_make_key	(	const u8 *	mac_address,
		u16	bd_index
	)

inlinestatic

make address sanitizer skip this: The 6-Bytes mac-address is cast into an 8-Bytes u64, with 2 additional Bytes.

l2fib_make_key() does read those two Bytes but does not use them.

Definition at line 223 of file l2_fib.h.

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◆ l2fib_start_ager_scan()

void l2fib_start_ager_scan ( vlib_main_t * vm )

Kick off ager to scan MACs to age/delete MAC entries.

Definition at line 782 of file l2_fib.c.

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◆ l2fib_swif_seq_num()

static_always_inline u8* l2fib_swif_seq_num ( u32 sw_if_index )

Definition at line 457 of file l2_fib.h.

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◆ l2fib_table_dump()

void l2fib_table_dump	(	u32	bd_index,
		l2fib_entry_key_t **	l2fe_key,
		l2fib_entry_result_t **	l2fe_res
	)

Definition at line 132 of file l2_fib.c.

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◆ l2fib_valid_swif_seq_num()

static_always_inline u8* l2fib_valid_swif_seq_num ( u32 sw_if_index )

Definition at line 464 of file l2_fib.h.

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◆ STATIC_ASSERT_SIZEOF() [1/3]

STATIC_ASSERT_SIZEOF	(	l2fib_entry_key_t	,
		8
	)

◆ STATIC_ASSERT_SIZEOF() [2/3]

STATIC_ASSERT_SIZEOF	(	l2fib_entry_result_flags_t	,
		1
	)

◆ STATIC_ASSERT_SIZEOF() [3/3]

STATIC_ASSERT_SIZEOF	(	l2fib_entry_result_t	,
		8
	)

Variable Documentation

◆ l2fib_main

l2fib_main_t l2fib_main

Definition at line 55 of file l2_fib.c.

Data Structures

Macros

Typedefs

Enumerations

Functions

Variables

Macro Definition Documentation

◆ foreach_l2fib_entry_result_attr

◆ L2FIB_AGE_SCAN_INTERVAL

◆ L2FIB_EVENT_LEARN_LIMIT_DEFAULT

◆ L2FIB_EVENT_MAX_MACS_DEFAULT

◆ L2FIB_EVENT_SCAN_DELAY_DEFAULT

◆ L2FIB_MEMORY_SIZE

◆ L2FIB_NUM_BUCKETS

Typedef Documentation

◆ l2fib_entry_result_flags_t

◆ l2fib_entry_result_t

Enumeration Type Documentation

◆ l2_mac_event_action_t

◆ l2fib_entry_result_flags_t_

Function Documentation

◆ BVT()

◆ format_l2fib_entry_result_flags()

◆ format_vnet_sw_if_index_name_with_NA()

◆ l2fib_add_entry()

◆ l2fib_add_filter_entry()

◆ l2fib_clear_table()

◆ l2fib_compute_hash_bucket()

◆ l2fib_del_entry()

◆ l2fib_entry_result_clear_bits()

◆ l2fib_entry_result_set_bits()

◆ l2fib_flush_all_mac()

◆ l2fib_flush_bd_mac()

◆ l2fib_flush_int_mac()

◆ l2fib_lookup_1()

◆ l2fib_lookup_2()

◆ l2fib_lookup_4()

◆ l2fib_make_key()

◆ l2fib_start_ager_scan()

◆ l2fib_swif_seq_num()

◆ l2fib_table_dump()

◆ l2fib_valid_swif_seq_num()

◆ STATIC_ASSERT_SIZEOF() [1/3]

◆ STATIC_ASSERT_SIZEOF() [2/3]

◆ STATIC_ASSERT_SIZEOF() [3/3]

Variable Documentation

◆ l2fib_main