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Date:   Fri, 11 Jun 2021 22:39:59 -0600
From:   David Ahern <dsahern@...il.com>
To:     dlinkin@...dia.com, netdev@...r.kernel.org
Cc:     davem@...emloft.net, kuba@...nel.org, jiri@...dia.com,
        stephen@...workplumber.org, vladbu@...dia.com, parav@...dia.com,
        huyn@...dia.com
Subject: Re: [PATCH RESEND2 iproute2 net-next 0/3] devlink rate support

On 6/11/21 1:25 AM, dlinkin@...dia.com wrote:
> From: Dmytro Linkin <dlinkin@...dia.com>
> 
> Resend rebased on top of net-next. Dropped header update patch.
> 
> Serries implements devlink rate commands, which are:
> - Dump particular or all rate objects (JSON or non-JSON)
> - Add/Delete node rate object
> - Set tx rate share/max values for rate object
> - Set/Unset parent rate object for other rate object
> 
> Examples:
> 
> Display all rate objects:
> 
>     # devlink port function rate show
>     pci/0000:03:00.0/1 type leaf parent some_group
>     pci/0000:03:00.0/2 type leaf tx_share 12Mbit
>     pci/0000:03:00.0/some_group type node tx_share 1Gbps tx_max 5Gbps
> 
> Display leaf rate object bound to the 1st devlink port of the
> pci/0000:03:00.0 device:
> 
>     # devlink port function rate show pci/0000:03:00.0/1
>     pci/0000:03:00.0/1 type leaf
> 
> Display node rate object with name some_group of the pci/0000:03:00.0
> device:
> 
>     # devlink port function rate show pci/0000:03:00.0/some_group
>     pci/0000:03:00.0/some_group type node
> 
> Display leaf rate object rate values using IEC units:
> 
>     # devlink -i port function rate show pci/0000:03:00.0/2
>     pci/0000:03:00.0/2 type leaf 11718Kibit
> 
> Display pci/0000:03:00.0/2 leaf rate object as pretty JSON output:
> 
>     # devlink -jp port function rate show pci/0000:03:00.0/2
>     {
>         "rate": {
>             "pci/0000:03:00.0/2": {
>                 "type": "leaf",
>                 "tx_share": 1500000
>             }
>         }
>     }
> 
> Create node rate object with name "1st_group" on pci/0000:03:00.0 device:
> 
>     # devlink port function rate add pci/0000:03:00.0/1st_group
> 
> Create node rate object with specified parameters:
> 
>     # devlink port function rate add pci/0000:03:00.0/2nd_group \
>         tx_share 10Mbit tx_max 30Mbit parent 1st_group
> 
> Set parameters to the specified leaf rate object:
> 
>     # devlink port function rate set pci/0000:03:00.0/1 \
>         tx_share 2Mbit tx_max 10Mbit
> 
> Set leaf's parent to "1st_group":
> 
>     # devlink port function rate set pci/0000:03:00.0/1 parent 1st_group
> 
> Unset leaf's parent:
> 
>     # devlink port function rate set pci/0000:03:00.0/1 noparent
> 
> Delete node rate object:
> 
>     # devlink port function rate del pci/0000:03:00.0/2nd_group
> 
> Rate values can be specified in bits or bytes per second (bit|bps), with
> any SI (k, m, g, t) or IEC (ki, mi, gi, ti) prefix. Bare number means
> bits per second. Units also printed in "show" command output, but not
> necessarily the same which were specified with "set" or "add" command.
> -i/--iec switch force output in IEC units. JSON output always print
> values as bytes per sec.
> 
> Dmytro Linkin (3):
>   devlink: Add helper function to validate object handler
>   devlink: Add port func rate support
>   devlink: Add ISO/IEC switch
> 
>  devlink/devlink.c       | 527 +++++++++++++++++++++++++++++++++++++++++++++---
>  man/man8/devlink-port.8 |   8 +
>  man/man8/devlink-rate.8 | 270 +++++++++++++++++++++++++
>  man/man8/devlink.8      |   4 +
>  4 files changed, 780 insertions(+), 29 deletions(-)
>  create mode 100644 man/man8/devlink-rate.8
> 

applied to iproute2-next. Thanks,

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