netdev - Re: [net-next 06/11] devlink: Extend SF port attributes to have external attribute

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Date:   Wed, 21 Apr 2021 12:20:08 -0700
From:   Jakub Kicinski <kuba@...nel.org>
To:     Saeed Mahameed <saeed@...nel.org>
Cc:     "David S. Miller" <davem@...emloft.net>, netdev@...r.kernel.org,
        Parav Pandit <parav@...dia.com>, Jiri Pirko <jiri@...dia.com>,
        Vu Pham <vuhuong@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: Re: [net-next 06/11] devlink: Extend SF port attributes to have
 external attribute

On Wed, 21 Apr 2021 10:47:18 -0700 Saeed Mahameed wrote:
> From: Parav Pandit <parav@...dia.com>
> 
> Extended SF port attributes to have optional external flag similar to
> PCI PF and VF port attributes.
> 
> External atttibute is required to generate unique phys_port_name when PF number
> and SF number are overlapping between two controllers similar to SR-IOV
> VFs.
> 
> When a SF is for external controller an example view of external SF
> port and config sequence.
> 
> 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 splittable false
>   function:
>     hw_addr 00:00:00:00:00:00 state inactive opstate detached
> 
> phys_port_name construction:
> $ cat /sys/class/net/eth1/phys_port_name
> c1pf0sf77
> 
> Signed-off-by: Parav Pandit <parav@...dia.com>
> Reviewed-by: Jiri Pirko <jiri@...dia.com>
> Reviewed-by: Vu Pham <vuhuong@...dia.com>
> Signed-off-by: Saeed Mahameed <saeedm@...dia.com>

I have a feeling I nacked this in the past, but can't find the thread.
Was something similar previously posted?