netdev - Re: [PATCH iproute2-next v3 0/3] Provide support for IOAM

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Date:   Mon, 2 Aug 2021 11:37:45 -0600
From:   David Ahern <dsahern@...il.com>
To:     Justin Iurman <justin.iurman@...ege.be>, netdev@...r.kernel.org
Cc:     stephen@...workplumber.org
Subject: Re: [PATCH iproute2-next v3 0/3] Provide support for IOAM

On 8/1/21 6:45 AM, Justin Iurman wrote:
> v3:
>  - Use strcmp instead of matches
>  - Use genl_init_handle instead of rtnl_open_byproto/genl_resolve_family
>  - Refine the output of schemas data
>  - distinguish trace options by adding another keyword, in this case "prealloc":
>    "encap ioam6 trace **prealloc** type ...." (anticipate future implems)
> 
> v2:
>  - Use print_{hex,0xhex} instead of print_string when possible (patch #1)
> 
> 
> The IOAM patchset was merged recently (see net-next commits [1,2,3,4,5,6]).
> Therefore, this patchset provides support for IOAM inside iproute2, as well as
> manpage documentation. Here is a summary of added features inside iproute2.
> 
> (1) configure IOAM namespaces and schemas:
> 
> $ ip ioam
> Usage:	ip ioam { COMMAND | help }
> 	ip ioam namespace show
> 	ip ioam namespace add ID [ data DATA32 ] [ wide DATA64 ]
> 	ip ioam namespace del ID
> 	ip ioam schema show
> 	ip ioam schema add ID DATA
> 	ip ioam schema del ID
> 	ip ioam namespace set ID schema { ID | none }
> 	
> (2) provide a new encap type to insert the IOAM pre-allocated trace:
> 
> $ ip -6 ro ad fc00::1/128 encap ioam6 trace prealloc type 0x800000 ns 1 size 12 dev eth0
> 
>   [1] db67f219fc9365a0c456666ed7c134d43ab0be8a
>   [2] 9ee11f0fff205b4b3df9750bff5e94f97c71b6a0
>   [3] 8c6f6fa6772696be0c047a711858084b38763728
>   [4] 3edede08ff37c6a9370510508d5eeb54890baf47
>   [5] de8e80a54c96d2b75377e0e5319a64d32c88c690
>   [6] 968691c777af78d2daa2ee87cfaeeae825255a58
> 
> Justin Iurman (3):
>   Add, show, link, remove IOAM namespaces and schemas
>   New IOAM6 encap type for routes
>   IOAM man8
> 
>  include/uapi/linux/ioam6.h          | 133 +++++++++++
>  include/uapi/linux/ioam6_genl.h     |  52 +++++
>  include/uapi/linux/ioam6_iptunnel.h |  20 ++
>  include/uapi/linux/lwtunnel.h       |   1 +
>  ip/Makefile                         |   2 +-
>  ip/ip.c                             |   3 +-
>  ip/ip_common.h                      |   1 +
>  ip/ipioam6.c                        | 340 ++++++++++++++++++++++++++++
>  ip/iproute.c                        |   5 +-
>  ip/iproute_lwtunnel.c               | 127 +++++++++++
>  man/man8/ip-ioam.8                  |  72 ++++++
>  man/man8/ip-route.8.in              |  36 ++-
>  man/man8/ip.8                       |   7 +-
>  13 files changed, 793 insertions(+), 6 deletions(-)
>  create mode 100644 include/uapi/linux/ioam6.h
>  create mode 100644 include/uapi/linux/ioam6_genl.h
>  create mode 100644 include/uapi/linux/ioam6_iptunnel.h
>  create mode 100644 ip/ipioam6.c
>  create mode 100644 man/man8/ip-ioam.8
> 

applied to iproute2-next.