Re: [PATCH net-next 3/3] net: hns3: add support for link diagnosis info in debugfs
From: Jakub Kicinski <kuba@kernel.org>
Date: 2021-06-24 19:25:22
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On Thu, 24 Jun 2021 22:36:45 +0800 Guangbin Huang wrote:
In order to know reason why link down, add a debugfs file "link_diagnosis_info" to get link faults from firmware, and each bit represents one kind of fault. usage example: $ cat link_diagnosis_info Reference clock lost
Please use ethtool->get_link_ext_state instead.