2017-11-02 15:56:43

by David Daney

[permalink] [raw]
Subject: Re: [PATCH 6/7] netdev: octeon-ethernet: Add Cavium Octeon III support.

On 11/02/2017 05:43 AM, Andrew Lunn wrote:
[...]
>> +
>> + i = atomic_inc_return(&pki_id);
>> + pki_dev = platform_device_register_data(&new_dev->dev,
>> + is_mix ? "octeon_mgmt" : "ethernet-mac-pki",
>> + i, &platform_data, sizeof(platform_data));
>> + dev_info(&pdev->dev, "Created %s %u: %p\n",
>> + is_mix ? "MIX" : "PKI", pki_dev->id, pki_dev);
>
> Is there any change of these ethernet ports being used to connect to
> an Ethernet switch. We have had issues in the past with these sort of
> platform devices combined with DSA.
>

There are only two possibilities. The BGX MACs have a multiplexer that
allows them to be connected to either the "octeon_mgmt" MIX packet
processor, or to the "ethernet-mac-pki" PKI/PKO packet processor. The
SoCs supported by these drivers do not contain any hardware that would
be considered an "Ethernet switch".

I'm not sure I fully understand what your question is though, so I may
not have answered it.

David Daney


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