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            • Summary
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              • get
              • new
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              • ovs-header
              • user-features
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              • datapath
                • name (string)
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                • stats (binary)
                • megaflow-stats (binary)
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The Linux Kernel
  • Kernel subsystem documentation
  • Networking
  • Netlink Family Specifications
  • Family ovs_datapath netlink specification
  • View page source

Family ovs_datapath netlink specification¶

Contents

  • Family ovs_datapath netlink specification

    • Summary

    • Operations

      • get

      • new

      • del

    • Multicast groups

    • Definitions

      • ovs-header

      • user-features

      • datapath-stats

      • megaflow-stats

    • Attribute sets

      • datapath

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)¶

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