netdev - Re: [PATCH iproute2-next v2] devlink: Add optional controller user input

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Message-ID: <a673776a-7bc9-2253-d6ea-68474c56bd49@gmail.com>
Date:   Thu, 10 Jun 2021 20:40:14 -0600
From:   David Ahern <dsahern@...il.com>
To:     Parav Pandit <parav@...dia.com>, stephen@...workplumber.org,
        netdev@...r.kernel.org
Cc:     Jiri Pirko <jiri@...dia.com>
Subject: Re: [PATCH iproute2-next v2] devlink: Add optional controller user
 input

On 6/7/21 1:24 PM, Parav Pandit wrote:
> A user optionally provides the external controller number when user
> wants to create devlink port for the external controller.
> 
> An example on eswitch system:
> $ devlink dev eswitch set pci/0033:01:00.0 mode switchdev
> 
> $ devlink port show
> pci/0033:01:00.0/196607: type eth netdev enP51p1s0f0np0 flavour physical port 0 splittable false
> pci/0033:01:00.0/131072: type eth netdev eth0 flavour pcipf controller 1 pfnum 0 external true splittable false
>   function:
>     hw_addr 00:00:00:00:00:00
> 
> $ devlink port add pci/0033:01:00.0 flavour pcisf pfnum 0 sfnum 77 controller 1
> pci/0033:01:00.0/163840: type eth netdev eth1 flavour pcisf controller 1 pfnum 0 sfnum 77 external true splittable false
>   function:
>     hw_addr 00:00:00:00:00:00 state inactive opstate detached
> 
> Signed-off-by: Parav Pandit <parav@...dia.com>
> Reviewed-by: Jiri Pirko <jiri@...dia.com>
> ---
> changelog:
> v1->v2: (addresssed comments from David)
>  - split the command help output and man page to multiple lines to make it readable
> ---
>  devlink/devlink.c       | 21 ++++++++++++++++++---
>  man/man8/devlink-port.8 | 21 +++++++++++++++++++++
>  2 files changed, 39 insertions(+), 3 deletions(-)
> 

applied to iproute2-next, but ...

> @@ -3795,7 +3806,9 @@ static void cmd_port_help(void)
>  	pr_err("       devlink port param set DEV/PORT_INDEX name PARAMETER value VALUE cmode { permanent | driverinit | runtime }\n");
>  	pr_err("       devlink port param show [DEV/PORT_INDEX name PARAMETER]\n");
>  	pr_err("       devlink port health show [ DEV/PORT_INDEX reporter REPORTER_NAME ]\n");
> -	pr_err("       devlink port add DEV/PORT_INDEX flavour FLAVOUR pfnum PFNUM [ sfnum SFNUM ]\n");
> +	pr_err("       devlink port add DEV/PORT_INDEX flavour FLAVOUR pfnum PFNUM\n"
> +	       "                      [ sfnum SFNUM ]\n"
> +	       "                      [ controller CNUM ]\n");


I put both of those lines on 1 since they fit within 80. Same below.