netdev - Re: [PATCH v12 03/10] netdev: cavium: octeon: Add Octeon III BGX Ethernet Nexus

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Message-ID: <BYAPR07MB4325916FAAE80A23219174C2E14E0@BYAPR07MB4325.namprd07.prod.outlook.com>
Date:   Fri, 29 Jun 2018 03:30:51 +0000
From:   "Chavva, Chandrakala" <Chandrakala.Chavva@...ium.com>
To:     David Miller <davem@...emloft.net>,
        "Munoz, Carlos" <Carlos.Munoz@...ium.com>
CC:     "andrew@...n.ch" <andrew@...n.ch>,
        "Hill, Steven" <Steven.Hill@...ium.com>,
        "netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: [PATCH v12 03/10] netdev: cavium: octeon: Add Octeon III BGX
 Ethernet Nexus

David,

How can we support NFS boot if pass the parameters via devlink. Basically this determines what phy to use from device tree.

Chandra

________________________________________
From: David Miller <davem@...emloft.net>
Sent: Thursday, June 28, 2018 7:19:05 PM
To: Munoz, Carlos
Cc: andrew@...n.ch; Hill, Steven; netdev@...r.kernel.org; Chavva, Chandrakala
Subject: Re: [PATCH v12 03/10] netdev: cavium: octeon: Add Octeon III BGX Ethernet Nexus

External Email

From: Carlos Munoz <cmunoz@...ium.com>
Date: Thu, 28 Jun 2018 14:20:05 -0700

>
>
> On 06/28/2018 01:41 AM, Andrew Lunn wrote:
>> External Email
>>
>>> +static char *mix_port;
>>> +module_param(mix_port, charp, 0444);
>>> +MODULE_PARM_DESC(mix_port, "Specifies which ports connect to MIX interfaces.");
>>> +
>>> +static char *pki_port;
>>> +module_param(pki_port, charp, 0444);
>>> +MODULE_PARM_DESC(pki_port, "Specifies which ports connect to the PKI.");
>> Module parameters are generally not liked. Can you do without them?
>
> These parameters change the kernel port assignment required by user
> space applications. We rather keep them as they simplify the
> process.

This is actually a terrible user experience.

Please provide a way to do this by performing operations on a device object
after the driver loads.

Use something like devlink or similar if you have to.