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Date: Mon, 20 Jul 2020 11:58:37 +0530 From: Vishal Kulkarni <vishal@...lsio.com> To: Andrew Lunn <andrew@...n.ch> Cc: netdev@...r.kernel.org, davem@...emloft.net, nirranjan@...lsio.com Subject: Re: [PATCH net-next 0/4] cxgb4: add ethtool self_test support On Friday, July 07/17/20, 2020 at 20:02:51 +0200, Andrew Lunn wrote: > On Fri, Jul 17, 2020 at 07:17:55PM +0530, Vishal Kulkarni wrote: > > This series of patches add support for below tests. > > 1. Adapter status test > > 2. Link test > > 3. Link speed test > > 4. Loopback test > > Hi Vishal > > The loopback test is pretty usual for an ethtool self test. But the > first 3 are rather odd. They don't really seem to be self tests. What > reason do you have for adding these? Are you trying to debug a > specific problem? > > Andrew Hi Andrew, Our requirement is to add a list of self tests that can summarize if the adapter is functioning properly in a single command during system init. The above tests are the most common ones run by our on-field diagnostics team. Besides, these tests seem to be the most common among other drivers as well. Hence we have added 1. Adapter status test: Tests whether the adapter is alive or crashed 2. Link test: Adapter PHY is up or not. 3. Link speed test: Adapter has negotiated link speed correctly or not. -Vishal
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