netdev - Re: [PATCH 0/2] Display adjacent switch port's attributes

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Date:	Thu, 12 Dec 2013 11:06:46 +0100
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	Stephen Hemminger <stephen@...workplumber.org>,
	Stefan Raspl <raspl@...ux.vnet.ibm.com>
CC:	davem@...emloft.net, bhutchings@...arflare.com,
	blaschka@...ux.vnet.ibm.com, netdev@...r.kernel.org,
	linux-s390@...r.kernel.org
Subject: Re: [PATCH 0/2] Display adjacent switch port's attributes

Le 11/12/2013 21:13, Stephen Hemminger a écrit :
> On Wed, 11 Dec 2013 14:28:58 +0100
> Stefan Raspl <raspl@...ux.vnet.ibm.com> wrote:
>
>> This patch series adds a new callback for ethtool to display the adjacent switch
>> port's attributes, as perceived by the NIC, e.g. through respective LLDP message
>> exchanges.
>> A patch for the qeth device driver provides a sample exploiter for the new
>> functionality.
>> A new option for ethtool to display the settings will be posted in a separate
>> patch.
>>
>> Best regards,
>> Stefan Raspl
>>
>> Stefan Raspl (2):
>>    ethtool: Add callback to indicate adjacent switch port attributes
>>    qeth: Display adjacent switch port attributes in ethtool
>>
>>   drivers/s390/net/qeth_core.h      |  7 ++++
>>   drivers/s390/net/qeth_core_main.c | 79 +++++++++++++++++++++++++++++++++++++++
>>   drivers/s390/net/qeth_core_mpc.h  | 17 +++++++++
>>   drivers/s390/net/qeth_l2_main.c   |  1 +
>>   drivers/s390/net/qeth_l3_main.c   |  1 +
>>   include/linux/ethtool.h           |  3 ++
>>   include/uapi/linux/ethtool.h      | 35 +++++++++++++++++
>>   net/core/ethtool.c                | 22 +++++++++++
>>   8 files changed, 165 insertions(+)
>>
>
> Why more ethtool and not netlink? ethtool is a brittle interface, non-extensible
> and does not support notifications of changes.
I agree with Stephen, netlink has more pros.
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