netdev - Re: Autoneg off in TI cpsw driver

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Message-ID: <CAH9_wRMwFdMrbK9fBKwmBxpDkj2m8X3hqN9RcXbrpmf3muo_Kw@mail.gmail.com>
Date:   Fri, 17 Feb 2017 00:31:12 +0530
From:   Sriram V <vshrirama@...il.com>
To:     Andrew Lunn <andrew@...n.ch>
Cc:     netdev@...r.kernel.org
Subject: Re: Autoneg off in TI cpsw driver

Hi Andrew,

1. run ethtool -s eth1 speed 10 duplex full autoneg off
2. ethtool eth1 <-------------- shows link up

3. remove cable    <------- ethtool shows link down
4. plug it in.  <----------  ethtool Still shows link down

I don't have the ip utility. I will cross compile it and get back to you.

Thanks,
Sriram



On Fri, Feb 17, 2017 at 12:27 AM, Andrew Lunn <andrew@...n.ch> wrote:
> On Fri, Feb 17, 2017 at 12:01:32AM +0530, Sriram V wrote:
>> Hi,
>>
>> I am using a Linux Kernel 4.1 Kernel. on AM437X with dual emac configuration.
>>
>> What i find is if i do the following the Link does not come up.
>>
>> 1. run ethtool -s eth1 speed 10 duplex full autoneg off
>> 2. remove cable
>> 3. plug it in.
>>
>> With the above sequence. The link does not come up. the plug in is not detected
>
> Hi Sriram
>
> There are a few different layers involved in this, we need to
> determine which layer is unhappy.
>
> What does ethtool show?
>
> What does ip link show indicate?
>
>      Andrew