netdev - Re: [PATCH/RFC net-next 2/9] nfp: add phys_switch

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Message-ID: <20170627163313.24f5b2ab@cakuba.netronome.com>
Date:   Tue, 27 Jun 2017 16:33:13 -0700
From:   Jakub Kicinski <jakub.kicinski@...ronome.com>
To:     Simon Horman <simon.horman@...ronome.com>
Cc:     David Miller <davem@...emloft.net>, netdev@...r.kernel.org,
        oss-drivers@...ronome.com
Subject: Re: [PATCH/RFC net-next 2/9] nfp: add phys_switch_id support

On Wed, 28 Jun 2017 01:21:42 +0200, Simon Horman wrote:
> Add phys_switch_id support by allowing lookup of
> SWITCHDEV_ATTR_ID_PORT_PARENT_ID via the nfp_repr_port_attr_get
> switchdev operation.
> 
> This is visible to user-space in the phys_switch_id attribute
> of a netdev.
> 
> e.g.
> cd /sys/devices/pci0000:00/0000:00:01.0/0000:01:00.0
> find . -name phys_switch_id | xargs grep .
> ./net/eth3/phys_switch_id:00154d1300bd
> ./net/eth4/phys_switch_id:00154d1300bd
> ./net/eth2/phys_switch_id:00154d1300bd
> grep: ./net/eth5/phys_switch_id: Operation not supported
> 
> In the above eth2 and eth3 and representor netdevs for the first and second
> physical port. eth4 is the representor for the PF. And eth5 is the PF netdev.
> 
> Signed-off-by: Simon Horman <simon.horman@...ronome.com>

Reviewed-by: Jakub Kicinski <jakub.kicinski@...ronome.com>