Family ovs_datapath netlink specification

Summary

OVS datapath configuration over generic netlink.

Operations

get

Get / dump OVS data path configuration and state

value:

3

attribute-set:

datapath

do:

request

attributes:

[name]

reply

attributes:

[name, upcall-pid, stats, megaflow-stats, user-features, masks-cache-size, per-cpu-pids]

dump:

request

attributes:

[name]

reply

attributes:

[name, upcall-pid, stats, megaflow-stats, user-features, masks-cache-size, per-cpu-pids]

new

Create new OVS data path

value:

1

attribute-set:

datapath

do:

request

attributes:

[name, upcall-pid, user-features]

del

Delete existing OVS data path

value:

2

attribute-set:

datapath

do:

request

attributes:

[name]

Multicast groups

• ovs_datapath

Definitions

ovs-header

type:

struct

members:

dp-ifindex (u32):

user-features

type:

flags

name-prefix:

ovs-dp-f-

enum-name:

None

entries:

unaligned:

Allow last Netlink attribute to be unaligned

vport-pids:

Allow datapath to associate multiple Netlink PIDs to each vport

tc-recirc-sharing:

Allow tc offload recirc sharing

dispatch-upcall-per-cpu:

Allow per-cpu dispatch of upcalls

datapath-stats

enum-name:

ovs-dp-stats

type:

struct

members:

n-hit (u64):

n-missed (u64):

n-lost (u64):

n-flows (u64):

megaflow-stats

enum-name:

ovs-dp-megaflow-stats

type:

struct

members:

n-mask-hit (u64):

n-masks (u32):

padding (u32):

n-cache-hit (u64):

pad1 (u64):

Attribute sets

datapath

name (string)

upcall-pid (u32)

doc:

upcall pid

stats (binary)

struct:

datapath-stats

megaflow-stats (binary)

struct:

megaflow-stats

user-features (u32)

enum:

user-features

enum-as-flags:

True

pad (unused)

masks-cache-size (u32)

per-cpu-pids (binary)

sub-type:

u32

ifindex (u32)