netdev - Re: bnx2x + SFP+ DA/2.6.33.3: Got bad status 0x0 when reading from SFP+ EEPROM -> SFP+ module is not initialized

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Message-ID: <4BF5A19E.5010003@ans.pl>
Date:	Thu, 20 May 2010 22:54:54 +0200
From:	Krzysztof Olędzki <ole@....pl>
To:	Rick Jones <rick.jones2@...com>
CC:	eilong@...adcom.com, Michael Chan <mchan@...adcom.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>
Subject: Re: bnx2x + SFP+ DA/2.6.33.3: Got bad status 0x0 when reading from
 SFP+ EEPROM -> SFP+ module is not initialized

On 2010-05-20 22:25, Rick Jones wrote:
> Some simple/simplistic thoughts/questions...
>
> Has the DAC been used successfully prior to this?

Yes. It was successfully used to connect two HP switches, before I 
received SFP+ SR modules, that allowed me to put the switches into 
distanced rooms.

> Do you have another HP ProCurve 10-GbE SFP+ 7m Direct Attach Cable (J9285B) to try?

Yes. The same situation.

> There's a transceiver and presumably an EEPROM at both ends of a DAC right?

Yes, I think there should be one. ;)

> If
> the EEPROM at one end were "bad" might the 57711 be happier with the other end
> of the DAC?

Tested both ends. The same situation. :|

> Getting some sort of error message at the switch side, which may
> (or may not) have more detailed diagnostics might help.

There is no error message at the switch side. The switch shows that 
everything is correct.

Best regards,

				Krzysztof Olędzki
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