Subject: Re: [PATCH net-next] Driver for IBM System i/p VNIC protocol

From: Thomas Falcon <[email-masked]>
Date: Mon, 7 Dec 2015 12:50:00 -0600

On 12/05/2015 09:25 PM, David Miller wrote:
> From: Thomas Falcon <[email-masked]>
> Date: Fri,  4 Dec 2015 11:49:46 -0600
>
>> +static int ibmvnic_buffs_per_pool = IBMVNIC_BUFFS_PER_POOL;
>> +module_param(ibmvnic_buffs_per_pool, int, S_IRUGO);
>> +MODULE_PARM_DESC(ibmvnic_buffs_per_pool,
>> +		 "IBMVNIC number of buffers per rx pool");
> Please do not use module parameters for settings that effect
> the basic operation of the driver.

Hi. Thanks for you feedback.  Could you clarify on what constitutes basic operation?  I just want to be sure if we should remove the other module parameters or just this one in particular?

>
> Instead use facilities that are generic and provide the same
> user interface for all networking drivers, such as ethtool.

Is it possible to change driver settings like this with ethtool? Would adding an interface in sysfs to change this setting be acceptable?

>
> Otherwise users would need to learn a different way to configure the
> same thing on different devices, which is not acceptable.
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