Sorry for the terseness and top post.

It's possible the X540 push broke something here - we've had a customer with a 
similar problem, and I've been hard-pressed to figure it out. There are updates 
from intel for ixgbe, and MAYBE it fixes the X520 flow control.

Dan

Sent from my iPhone (typos, autocorrect, and all)

On Apr 16, 2013, at 5:45 AM, Joerg Goltermann <[email protected]> wrote:

> Hello,
> 
> I am a bit confused about the flow control settings on the
> ixgbe driver. I use a X520-DA2 with SFP+ copper twinax cable.
> 
> "dladm show-ether" reports
> LINK            PTYPE    STATE    AUTO  SPEED-DUPLEX PAUSE
> ixgbe0          current  up       yes   10G-f                           bi
> ixgbe1          current  up       yes   10G-f                           bi
> 
> and "dladm show-linkprop -p flowctrl" shows
> LINK         PROPERTY        PERM VALUE          DEFAULT        POSSIBLE
> ixgbe0       flowctrl        rw   no             no             no,tx,rx,bi
> ixgbe1       flowctrl        rw   no             no             no,tx,rx,bi
> 
> 
> The switch says flow control symmetric/active and after changing the
> flow control settings with "dladm set-linkprop -p flowctrl=bi ixgbeX"
> the switch still reports flow control is active, but the link is dead
> and can not transfer packets.
> 
> Changing the settings in /kernel/drv/ixgbe.conf to
> 
> flow_control = 3;
> 
> seems to have no effect at all.
> 
> Who can explain this behavior?
> 
> Thanks.
> 
> - Joerg
> -- 
> OSN Online Service Nuernberg GmbH, Bucher Str. 78, 90408 Nuernberg
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> 
> 
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