though I think these only affect the short link between the FPGA and
the vitesse tranceiver anyway,
Yep, you've got the right of it. You'll need to tweak the Vitesse PHY through
the control interface from software; there is an MDIO interface available,
which does work. But we don't have a
Thanks for the info, I will certainly try and get my hands on some new
Mellanox firmware before fighting with the vitesse.
Cheers,
Jack
On 23 July 2014 01:04, Jason Manley jman...@ska.ac.za wrote:
though I think these only affect the short link between the FPGA and
the vitesse tranceiver
Hi guys,
though I think these only affect the short link between the FPGA
and the vitesse tranceiver anyway,
Yep, you've got the right of it. You'll need to tweak the Vitesse PHY
through the control interface from software; there is an MDIO
interface available, which does work. But we don't
Can you get any sense of whether the packets are being received by the switch
and dropped by the roach vs not being received by the switch in the first
place? Can you change any transmission parameters on the switch?
FWIW, I think you can set preemph and other such params on the ROACH at
Hey Dave,
Judging by the switch diagnostics, everything is making it through the
switch and only being dropped at the ROACH RX end. I'm digging through
the switch manual at the moment, but haven't found anything too
promising looking so far.
It would seem that some of the SFP ports on the ROACH
Hi, Jack,
On Jul 22, 2014, at 1:46 PM, Jack Hickish wrote:
Judging by the switch diagnostics, everything is making it through the
switch and only being dropped at the ROACH RX end. I'm digging through
the switch manual at the moment, but haven't found anything too
promising looking so far.
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