Common utility functions for IPv4 and IPv6 VXLAN GPE tunnels. More...

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Macros
#define	foreach_gpe_copy_field

#define	foreach_copy_ipv4

#define	foreach_copy_ipv6

Functions
static u8 *	format_decap_next (u8 s, va_list args)

u8 *	format_vxlan_gpe_tunnel (u8 s, va_list args)
	Format function for VXLAN GPE tunnel. More...

static u8 *	format_vxlan_gpe_name (u8 s, va_list args)
	Naming for VXLAN GPE tunnel. More...

static clib_error_t *	vxlan_gpe_interface_admin_up_down (vnet_main_t *vnm, u32 hw_if_index, u32 flags)
	CLI function for VXLAN GPE admin up/down. More...

	VNET_DEVICE_CLASS (vxlan_gpe_device_class, static)

static u8 *	format_vxlan_gpe_header_with_length (u8 s, va_list args)
	Formatting function for tracing VXLAN GPE with length. More...

	VNET_HW_INTERFACE_CLASS (vxlan_gpe_hw_class)

static void	vxlan_gpe_tunnel_restack_dpo (vxlan_gpe_tunnel_t *t)

static vxlan_gpe_tunnel_t *	vxlan_gpe_tunnel_from_fib_node (fib_node_t *node)

static fib_node_back_walk_rc_t	vxlan_gpe_tunnel_back_walk (fib_node_t node, fib_node_back_walk_ctx_t ctx)
	Function definition to backwalk a FIB node - Here we will restack the new dpo of VXLAN_GPE DIP to encap node. More...

static fib_node_t *	vxlan_gpe_tunnel_fib_node_get (fib_node_index_t index)
	Function definition to get a FIB node from its index. More...

static void	vxlan_gpe_tunnel_last_lock_gone (fib_node_t *node)
	Function definition to inform the FIB node that its last lock has gone. More...

int	vxlan4_gpe_rewrite (vxlan_gpe_tunnel_t *t, u32 extension_size, u8 protocol_override, uword encap_next_node)
	Calculate IPv4 VXLAN GPE rewrite header. More...

int	vxlan6_gpe_rewrite (vxlan_gpe_tunnel_t *t, u32 extension_size, u8 protocol_override, uword encap_next_node)
	Calculate IPv6 VXLAN GPE rewrite header. More...

typedef	CLIB_PACKED (union { struct { fib_node_index_t mfib_entry_index;adj_index_t mcast_adj_index;};u64 as_u64;})

static void	mcast_shared_add (ip46_address_t *remote, fib_node_index_t mfei, adj_index_t ai)

static void	mcast_shared_remove (ip46_address_t *remote)

int	vnet_vxlan_gpe_add_del_tunnel (vnet_vxlan_gpe_add_del_tunnel_args_t a, u32 sw_if_indexp)
	Add or Del a VXLAN GPE tunnel. More...

static clib_error_t *	vxlan_gpe_add_del_tunnel_command_fn (vlib_main_t vm, unformat_input_t input, vlib_cli_command_t *cmd)

static clib_error_t *	show_vxlan_gpe_tunnel_command_fn (vlib_main_t vm, unformat_input_t input, vlib_cli_command_t *cmd)
	CLI function for showing VXLAN GPE tunnels. More...

void	vnet_int_vxlan_gpe_bypass_mode (u32 sw_if_index, u8 is_ip6, u8 is_enable)

static clib_error_t *	set_ip_vxlan_gpe_bypass (u32 is_ip6, unformat_input_t input, vlib_cli_command_t cmd)

static clib_error_t *	set_ip4_vxlan_gpe_bypass (vlib_main_t vm, unformat_input_t input, vlib_cli_command_t *cmd)

static clib_error_t *	set_ip6_vxlan_gpe_bypass (vlib_main_t vm, unformat_input_t input, vlib_cli_command_t *cmd)

	VNET_FEATURE_INIT (ip4_vxlan_gpe_bypass, static)

	VNET_FEATURE_INIT (ip6_vxlan_gpe_bypass, static)

clib_error_t *	vxlan_gpe_init (vlib_main_t *vm)
	Feature init function for VXLAN GPE. More...

Variables
vxlan_gpe_main_t	vxlan_gpe_main

const static fib_node_vft_t	vxlan_gpe_vft

static vlib_cli_command_t	create_vxlan_gpe_tunnel_command
	(constructor) VLIB_CLI_COMMAND (create_vxlan_gpe_tunnel_command) More...

static vlib_cli_command_t	show_vxlan_gpe_tunnel_command
	(constructor) VLIB_CLI_COMMAND (show_vxlan_gpe_tunnel_command) More...

static vlib_cli_command_t	set_interface_ip_vxlan_gpe_bypass_command
	(constructor) VLIB_CLI_COMMAND (set_interface_ip_vxlan_gpe_bypass_command) More...

static vlib_cli_command_t	set_interface_ip6_vxlan_gpe_bypass_command
	(constructor) VLIB_CLI_COMMAND (set_interface_ip6_vxlan_gpe_bypass_command) More...

Detailed Description

Common utility functions for IPv4 and IPv6 VXLAN GPE tunnels.

VXLAN-GPE.

VXLAN-GPE provides the features needed to allow L2 bridge domains (BDs) to span multiple servers. This is done by building an L2 overlay on top of an L3 network underlay using VXLAN-GPE tunnels.

This makes it possible for servers to be co-located in the same data center or be separated geographically as long as they are reachable through the underlay L3 network.

You can refer to this kind of L2 overlay bridge domain as a VXLAN-GPE segment.

Definition in file vxlan_gpe.c.

Macro Definition Documentation

◆ foreach_copy_ipv4

#define foreach_copy_ipv4

Value:

  {                     \
  _(local.ip4.as_u32)                           \
  _(remote.ip4.as_u32)                          \
}

Definition at line 258 of file vxlan_gpe.c.

◆ foreach_copy_ipv6

#define foreach_copy_ipv6

Value:

  {                     \
  _(local.ip6.as_u64[0])                        \
  _(local.ip6.as_u64[1])                        \
  _(remote.ip6.as_u64[0])                       \
  _(remote.ip6.as_u64[1])                       \
}

Definition at line 263 of file vxlan_gpe.c.

◆ foreach_gpe_copy_field

#define foreach_gpe_copy_field

Value:

_(vni)                                          \
_(protocol)                                     \
_(mcast_sw_if_index)                            \
_(encap_fib_index)                              \
_(decap_fib_index)

Definition at line 251 of file vxlan_gpe.c.

Function Documentation

◆ CLIB_PACKED()

typedef CLIB_PACKED ( union { struct { fib_node_index_t mfib_entry_index;adj_index_t mcast_adj_index;};u64 as_u64;} )

Definition at line 389 of file vxlan_gpe.c.

◆ format_decap_next()

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

static

Definition at line 50 of file vxlan_gpe.c.

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◆ format_vxlan_gpe_header_with_length()

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

static

Formatting function for tracing VXLAN GPE with length.

Parameters

*s
*args

Returns: *s

Definition at line 166 of file vxlan_gpe.c.

◆ format_vxlan_gpe_name()

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

static

Naming for VXLAN GPE tunnel.

Parameters

*s	formatting string
*args

Returns: *s formatted string

Definition at line 119 of file vxlan_gpe.c.

◆ format_vxlan_gpe_tunnel()

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

Format function for VXLAN GPE tunnel.

Parameters

*s	formatting string
*args

Returns: *s formatted string

Definition at line 85 of file vxlan_gpe.c.

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◆ mcast_shared_add()

static void mcast_shared_add	(	ip46_address_t *	remote,
		fib_node_index_t	mfei,
		adj_index_t	ai
	)

inlinestatic

Definition at line 410 of file vxlan_gpe.c.

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◆ mcast_shared_remove()

static void mcast_shared_remove ( ip46_address_t * remote )

inlinestatic

Definition at line 422 of file vxlan_gpe.c.

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◆ set_ip4_vxlan_gpe_bypass()

static clib_error_t* set_ip4_vxlan_gpe_bypass	(	vlib_main_t *	vm,
		unformat_input_t *	input,
		vlib_cli_command_t *	cmd
	)

static

Definition at line 1083 of file vxlan_gpe.c.

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◆ set_ip6_vxlan_gpe_bypass()

static clib_error_t* set_ip6_vxlan_gpe_bypass	(	vlib_main_t *	vm,
		unformat_input_t *	input,
		vlib_cli_command_t *	cmd
	)

static

Definition at line 1140 of file vxlan_gpe.c.

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◆ set_ip_vxlan_gpe_bypass()

static clib_error_t* set_ip_vxlan_gpe_bypass	(	u32	is_ip6,
		unformat_input_t *	input,
		vlib_cli_command_t *	cmd
	)

static

Definition at line 1039 of file vxlan_gpe.c.

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◆ show_vxlan_gpe_tunnel_command_fn()

static clib_error_t* show_vxlan_gpe_tunnel_command_fn	(	vlib_main_t *	vm,
		unformat_input_t *	input,
		vlib_cli_command_t *	cmd
	)

static

CLI function for showing VXLAN GPE tunnels.

Parameters

*vm
*input
*cmd

Returns: error

Definition at line 990 of file vxlan_gpe.c.

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◆ VNET_DEVICE_CLASS()

VNET_DEVICE_CLASS	(	vxlan_gpe_device_class	,
		static
	)

◆ VNET_FEATURE_INIT() [1/2]

VNET_FEATURE_INIT	(	ip4_vxlan_gpe_bypass	,
		static
	)

◆ VNET_FEATURE_INIT() [2/2]

VNET_FEATURE_INIT	(	ip6_vxlan_gpe_bypass	,
		static
	)

◆ VNET_HW_INTERFACE_CLASS()

VNET_HW_INTERFACE_CLASS ( vxlan_gpe_hw_class )

◆ vnet_int_vxlan_gpe_bypass_mode()

void vnet_int_vxlan_gpe_bypass_mode	(	u32	sw_if_index,
		u8	is_ip6,
		u8	is_enable
	)

Definition at line 1027 of file vxlan_gpe.c.

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◆ vnet_vxlan_gpe_add_del_tunnel()

int vnet_vxlan_gpe_add_del_tunnel	(	vnet_vxlan_gpe_add_del_tunnel_args_t *	a,
		u32 *	sw_if_indexp
	)

Add or Del a VXLAN GPE tunnel.

Parameters

*a
*sw_if_index

Returns: rc

Definition at line 442 of file vxlan_gpe.c.

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◆ vxlan4_gpe_rewrite()

int vxlan4_gpe_rewrite	(	vxlan_gpe_tunnel_t *	t,
		u32	extension_size,
		u8	protocol_override,
		uword	encap_next_node
	)

Calculate IPv4 VXLAN GPE rewrite header.

Parameters

*t

Returns: rc

Definition at line 280 of file vxlan_gpe.c.

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◆ vxlan6_gpe_rewrite()

int vxlan6_gpe_rewrite	(	vxlan_gpe_tunnel_t *	t,
		u32	extension_size,
		u8	protocol_override,
		uword	encap_next_node
	)

Calculate IPv6 VXLAN GPE rewrite header.

Parameters

*t

Returns: rc

Definition at line 338 of file vxlan_gpe.c.

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◆ vxlan_gpe_add_del_tunnel_command_fn()

static clib_error_t* vxlan_gpe_add_del_tunnel_command_fn	(	vlib_main_t *	vm,
		unformat_input_t *	input,
		vlib_cli_command_t *	cmd
	)

static

Definition at line 734 of file vxlan_gpe.c.

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◆ vxlan_gpe_init()

clib_error_t* vxlan_gpe_init ( vlib_main_t * vm )

Feature init function for VXLAN GPE.

Parameters

*vm

Returns: error

Definition at line 1221 of file vxlan_gpe.c.

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◆ vxlan_gpe_interface_admin_up_down()

static clib_error_t* vxlan_gpe_interface_admin_up_down	(	vnet_main_t *	vnm,
		u32	hw_if_index,
		u32	flags
	)

static

CLI function for VXLAN GPE admin up/down.

Parameters

*vnm
hw_if_index
flag

Returns: *rc

Definition at line 136 of file vxlan_gpe.c.

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◆ vxlan_gpe_tunnel_back_walk()

static fib_node_back_walk_rc_t vxlan_gpe_tunnel_back_walk	(	fib_node_t *	node,
		fib_node_back_walk_ctx_t *	ctx
	)

static

Function definition to backwalk a FIB node - Here we will restack the new dpo of VXLAN_GPE DIP to encap node.

Definition at line 208 of file vxlan_gpe.c.

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◆ vxlan_gpe_tunnel_fib_node_get()

static fib_node_t* vxlan_gpe_tunnel_fib_node_get ( fib_node_index_t index )

static

Function definition to get a FIB node from its index.

Definition at line 218 of file vxlan_gpe.c.

◆ vxlan_gpe_tunnel_from_fib_node()

static vxlan_gpe_tunnel_t* vxlan_gpe_tunnel_from_fib_node ( fib_node_t * node )

static

Definition at line 195 of file vxlan_gpe.c.

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◆ vxlan_gpe_tunnel_last_lock_gone()

static void vxlan_gpe_tunnel_last_lock_gone ( fib_node_t * node )

static

Function definition to inform the FIB node that its last lock has gone.

Definition at line 232 of file vxlan_gpe.c.

◆ vxlan_gpe_tunnel_restack_dpo()

static void vxlan_gpe_tunnel_restack_dpo ( vxlan_gpe_tunnel_t * t )

static

Definition at line 182 of file vxlan_gpe.c.

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Variable Documentation

◆ create_vxlan_gpe_tunnel_command

vlib_cli_command_t create_vxlan_gpe_tunnel_command

static

Initial value:

= {
  .path = "create vxlan-gpe tunnel",
  .short_help =
  "create vxlan-gpe tunnel local <local-addr> "
  " {remote <remote-addr>|group <mcast-addr> <intf-name>}"
  " vni <nn> [next-ip4][next-ip6][next-ethernet][next-nsh]"
  " [encap-vrf-id <nn>] [decap-vrf-id <nn>] [del]\n",
  .function = vxlan_gpe_add_del_tunnel_command_fn,
}

(constructor) VLIB_CLI_COMMAND (create_vxlan_gpe_tunnel_command)

Definition at line 968 of file vxlan_gpe.c.

◆ set_interface_ip6_vxlan_gpe_bypass_command

vlib_cli_command_t set_interface_ip6_vxlan_gpe_bypass_command

static

Initial value:

= {
  .path = "set interface ip6 vxlan-gpe-bypass",
  .function = set_ip6_vxlan_gpe_bypass,
  .short_help = "set interface ip6 vxlan-gpe-bypass <interface> [del]",
}

(constructor) VLIB_CLI_COMMAND (set_interface_ip6_vxlan_gpe_bypass_command)

Definition at line 1189 of file vxlan_gpe.c.

◆ set_interface_ip_vxlan_gpe_bypass_command

vlib_cli_command_t set_interface_ip_vxlan_gpe_bypass_command

static

Initial value:

= {
  .path = "set interface ip vxlan-gpe-bypass",
  .function = set_ip4_vxlan_gpe_bypass,
  .short_help = "set interface ip vxlan-gpe-bypass <interface> [del]",
}

(constructor) VLIB_CLI_COMMAND (set_interface_ip_vxlan_gpe_bypass_command)

Definition at line 1132 of file vxlan_gpe.c.

◆ show_vxlan_gpe_tunnel_command

vlib_cli_command_t show_vxlan_gpe_tunnel_command

static

Initial value:

= {
    .path = "show vxlan-gpe",
    .function = show_vxlan_gpe_tunnel_command_fn,
}

(constructor) VLIB_CLI_COMMAND (show_vxlan_gpe_tunnel_command)

Definition at line 1020 of file vxlan_gpe.c.

◆ vxlan_gpe_main

vxlan_gpe_main_t vxlan_gpe_main

Definition at line 47 of file vxlan_gpe.c.

◆ vxlan_gpe_vft

const static fib_node_vft_t vxlan_gpe_vft

static

Initial value:

= {
  .fnv_get = vxlan_gpe_tunnel_fib_node_get,
  .fnv_last_lock = vxlan_gpe_tunnel_last_lock_gone,
  .fnv_back_walk = vxlan_gpe_tunnel_back_walk,
}

Definition at line 245 of file vxlan_gpe.c.

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ foreach_copy_ipv4

◆ foreach_copy_ipv6

◆ foreach_gpe_copy_field

Function Documentation

◆ CLIB_PACKED()

◆ format_decap_next()

◆ format_vxlan_gpe_header_with_length()

◆ format_vxlan_gpe_name()

◆ format_vxlan_gpe_tunnel()

◆ mcast_shared_add()

◆ mcast_shared_remove()

◆ set_ip4_vxlan_gpe_bypass()

◆ set_ip6_vxlan_gpe_bypass()

◆ set_ip_vxlan_gpe_bypass()

◆ show_vxlan_gpe_tunnel_command_fn()

◆ VNET_DEVICE_CLASS()

◆ VNET_FEATURE_INIT() [1/2]

◆ VNET_FEATURE_INIT() [2/2]

◆ VNET_HW_INTERFACE_CLASS()

◆ vnet_int_vxlan_gpe_bypass_mode()

◆ vnet_vxlan_gpe_add_del_tunnel()

◆ vxlan4_gpe_rewrite()

◆ vxlan6_gpe_rewrite()

◆ vxlan_gpe_add_del_tunnel_command_fn()

◆ vxlan_gpe_init()

◆ vxlan_gpe_interface_admin_up_down()

◆ vxlan_gpe_tunnel_back_walk()

◆ vxlan_gpe_tunnel_fib_node_get()

◆ vxlan_gpe_tunnel_from_fib_node()

◆ vxlan_gpe_tunnel_last_lock_gone()

◆ vxlan_gpe_tunnel_restack_dpo()

Variable Documentation

◆ create_vxlan_gpe_tunnel_command

◆ set_interface_ip6_vxlan_gpe_bypass_command

◆ set_interface_ip_vxlan_gpe_bypass_command

◆ show_vxlan_gpe_tunnel_command

◆ vxlan_gpe_main

◆ vxlan_gpe_vft