mpls_label_dpo.h File Reference

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Data Structures
struct	mpls_label_dpo_t
	A representation of an MPLS label for imposition in the data-path. More...

Macros
#define	MPLS_LABEL_DPO_ATTR_MAX   (MPLS_LABEL_DPO_ATTR_UNIFORM_MODE+1)
#define	MPLS_LABEL_DPO_ATTR_NAMES
#define	FOR_EACH_MPLS_LABEL_DPO_ATTR(_item)
#define	MPLS_LABEL_DPO_MAX_N_LABELS   12
	Maximum number of labels in one DPO. More...

Typedefs
typedef enum mpls_label_dpo_attr_t_	mpls_label_dpo_attr_t
	Flags present on an MPLS label sourced path-extension. More...
typedef enum mpls_label_dpo_flags_t_	mpls_label_dpo_flags_t
typedef struct mpls_label_dpo_t	mpls_label_dpo_t
	A representation of an MPLS label for imposition in the data-path. More...

Enumerations
enum	mpls_label_dpo_attr_t_ { MPLS_LABEL_DPO_ATTR_NO_IP_TTL_DECR, MPLS_LABEL_DPO_ATTR_UNIFORM_MODE }
	Flags present on an MPLS label sourced path-extension. More...
enum	mpls_label_dpo_flags_t_ { MPLS_LABEL_DPO_FLAG_NONE = 0, MPLS_LABEL_DPO_FLAG_NO_IP_TTL_DECR = (1 << MPLS_LABEL_DPO_ATTR_NO_IP_TTL_DECR), MPLS_LABEL_DPO_FLAG_UNIFORM_MODE = (1 << MPLS_LABEL_DPO_ATTR_UNIFORM_MODE) }

Functions
u8 *	format_mpls_label_dpo_flags (u8 *s, va_list *args)
	Format the flags variable. More...
	STATIC_ASSERT ((sizeof(mpls_label_dpo_t)<=CLIB_CACHE_LINE_BYTES),"MPLS label DPO is larger than one cache line.")
	Assert that the MPLS label object is less than a cache line in size. More...
void	mpls_label_dpo_create (fib_mpls_label_t *label_stack, mpls_eos_bit_t eos, dpo_proto_t payload_proto, mpls_label_dpo_flags_t flags, const dpo_id_t *paremt, dpo_id_t *dpo)
	Create an MPLS label object. More...
u8 *	format_mpls_label_dpo (u8 *s, va_list *args)
static mpls_label_dpo_t *	mpls_label_dpo_get (index_t index)
void	mpls_label_dpo_module_init (void)
dpo_type_t	mpls_label_dpo_get_type (mpls_label_dpo_flags_t flags)

Variables
mpls_label_dpo_t *	mpls_label_dpo_pool

Macro Definition Documentation

#define FOR_EACH_MPLS_LABEL_DPO_ATTR

(

_item

)

Value:

for (_item = MPLS_LABEL_DPO_ATTR_NO_IP_TTL_DECR;       \
         _item <= MPLS_LABEL_DPO_ATTR_UNIFORM_MODE;        \
         _item++)

Definition at line 49 of file mpls_label_dpo.h.

#define MPLS_LABEL_DPO_ATTR_MAX   (MPLS_LABEL_DPO_ATTR_UNIFORM_MODE+1)

Definition at line 35 of file mpls_label_dpo.h.

#define MPLS_LABEL_DPO_ATTR_NAMES

Value:

{                               \
    [MPLS_LABEL_DPO_ATTR_NO_IP_TTL_DECR] = "no-ip-tll-decr",      \
    [MPLS_LABEL_DPO_ATTR_UNIFORM_MODE]   = "uniform-mode",        \
}

Definition at line 44 of file mpls_label_dpo.h.

#define MPLS_LABEL_DPO_MAX_N_LABELS   12

Maximum number of labels in one DPO.

Definition at line 62 of file mpls_label_dpo.h.

Typedef Documentation

typedef enum mpls_label_dpo_attr_t_ mpls_label_dpo_attr_t

Flags present on an MPLS label sourced path-extension.

typedef enum mpls_label_dpo_flags_t_ mpls_label_dpo_flags_t

typedef struct mpls_label_dpo_t mpls_label_dpo_t

A representation of an MPLS label for imposition in the data-path.

Enumeration Type Documentation

enum mpls_label_dpo_attr_t_

Flags present on an MPLS label sourced path-extension.

Enumerator
MPLS_LABEL_DPO_ATTR_NO_IP_TTL_DECR	Do not decrement the TTL of IP packet during imposition.
MPLS_LABEL_DPO_ATTR_UNIFORM_MODE

Definition at line 26 of file mpls_label_dpo.h.

enum mpls_label_dpo_flags_t_

Enumerator
MPLS_LABEL_DPO_FLAG_NONE
MPLS_LABEL_DPO_FLAG_NO_IP_TTL_DECR
MPLS_LABEL_DPO_FLAG_UNIFORM_MODE

Definition at line 37 of file mpls_label_dpo.h.

Function Documentation

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

Definition at line 191 of file mpls_label_dpo.c.

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

Format the flags variable.

Definition at line 174 of file mpls_label_dpo.c.

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void mpls_label_dpo_create	(	fib_mpls_label_t *	label_stack,
		mpls_eos_bit_t	eos,
		dpo_proto_t	payload_proto,
		mpls_label_dpo_flags_t	flags,
		const dpo_id_t *	paremt,
		dpo_id_t *	dpo
	)

Create an MPLS label object.

Parameters

label_stack	The stack if labels to impose, outer most label first
eos	The inner most label's EOS bit
payload_proto	The ptocool of the payload packets that will be imposed with this label header.
parent	The parent of the created MPLS label object
dpo	The MPLS label DPO created

Definition at line 57 of file mpls_label_dpo.c.

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static mpls_label_dpo_t* mpls_label_dpo_get ( index_t  index )

inlinestatic

Definition at line 146 of file mpls_label_dpo.h.

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dpo_type_t mpls_label_dpo_get_type

(

mpls_label_dpo_flags_t

flags

)

Definition at line 1358 of file mpls_label_dpo.c.

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void mpls_label_dpo_module_init

(

void

)

Definition at line 1340 of file mpls_label_dpo.c.

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STATIC_ASSERT	(	(sizeof(mpls_label_dpo_t)<=CLIB_CACHE_LINE_BYTES)	,
		"MPLS label DPO is larger than one cache line."
	)

Assert that the MPLS label object is less than a cache line in size.

Should this get any bigger then we will need to reconsider how many labels can be pushed in one object.

Variable Documentation

mpls_label_dpo_t* mpls_label_dpo_pool

Definition at line 24 of file mpls_label_dpo.c.