sr_replicate.c File Reference

Functions for replicating packets across SR tunnels. More...

Include dependency graph for sr_replicate.c:

Go to the source code of this file.

Data Structures
struct	sr_replicate_main_t
	sr_replicate state. More...
struct	sr_replicate_trace_t
	Information to display in packet trace. More...

Macros
#define	foreach_sr_replicate_error

Enumerations
enum	sr_replicate_error_t { SR_REPLICATE_N_ERROR }
	Struct for SR replicate errors. More...
enum	sr_replicate_next_t { SR_REPLICATE_NEXT_IP6_LOOKUP, SR_REPLICATE_N_NEXT }
	Defines next-nodes for packet processing. More...

Functions
static u8 *	format_sr_replicate_trace (u8 *s, va_list *args)
	packet trace format function. More...
static uword	sr_replicate_node_fn (vlib_main_t *vm, vlib_node_runtime_t *node, vlib_frame_t *frame)
	Single loop packet replicator. More...
clib_error_t *	sr_replicate_init (vlib_main_t *vm)

Variables
sr_replicate_main_t	sr_replicate_main
static char *	sr_replicate_error_strings []
	Error strings for SR replicate. More...
vlib_node_registration_t	sr_replicate_node
	(constructor) VLIB_REGISTER_NODE (sr_replicate_node) More...

Detailed Description

Functions for replicating packets across SR tunnels.

Leverages rte_pktmbuf_clone() so there is no memcpy for invariant parts of the packet.

Note

Currently requires DPDK

Definition in file sr_replicate.c.

Macro Definition Documentation

#define foreach_sr_replicate_error

Value:

_(REPLICATED, "sr packets replicated") \
_(NO_BUFFERS, "error allocating buffers for replicas") \
_(NO_REPLICAS, "no replicas were needed") \
_(NO_BUFFER_DROPS, "sr no buffer drops")

Definition at line 102 of file sr_replicate.c.

Enumeration Type Documentation

enum sr_replicate_error_t

Struct for SR replicate errors.

Enumerator
SR_REPLICATE_N_ERROR

Definition at line 111 of file sr_replicate.c.

enum sr_replicate_next_t

Defines next-nodes for packet processing.

Enumerator
SR_REPLICATE_NEXT_IP6_LOOKUP
SR_REPLICATE_N_NEXT

Definition at line 132 of file sr_replicate.c.

Function Documentation

static u8* format_sr_replicate_trace ( u8 *  s, va_list *  args  )

static

packet trace format function.

Parameters

*s	u8 used for string output
*args	va_list structured input to va_arg to output sr_replicate_trace_t

Returns

*s u8 - formatted trace output

Definition at line 74 of file sr_replicate.c.

Here is the call graph for this function:

clib_error_t* sr_replicate_init

(

vlib_main_t *

vm

)

Definition at line 406 of file sr_replicate.c.

Here is the call graph for this function:

static uword sr_replicate_node_fn ( vlib_main_t *  vm, vlib_node_runtime_t *  node, vlib_frame_t *  frame  )

static

Single loop packet replicator.

Node Identifier:

sr-replicate

Parameters

vm	vlib_main_t

Returns

frame->n_vectors uword

Definition at line 146 of file sr_replicate.c.

Here is the call graph for this function:

Variable Documentation

char* sr_replicate_error_strings[]

static

Initial value:

= {
#define _(sym,string) 
  foreach_sr_replicate_error

}

Error strings for SR replicate.

Definition at line 122 of file sr_replicate.c.

sr_replicate_main_t sr_replicate_main

Definition at line 51 of file sr_replicate.c.

vlib_node_registration_t sr_replicate_node

Initial value:

= {
  .function = sr_replicate_node_fn,
  .name = "sr-replicate",
  .vector_size = sizeof (u32),
  .format_trace = format_sr_replicate_trace,
  .type = VLIB_NODE_TYPE_INTERNAL,

  .n_errors = ARRAY_LEN(sr_replicate_error_strings),
  .error_strings = sr_replicate_error_strings,

  .n_next_nodes = SR_REPLICATE_N_NEXT,

  .next_nodes = {
        [SR_REPLICATE_NEXT_IP6_LOOKUP] = "ip6-lookup",
  },
}

(constructor) VLIB_REGISTER_NODE (sr_replicate_node)

Definition at line 387 of file sr_replicate.c.