From mboxrd@z Thu Jan  1 00:00:00 1970
From: "Lu, Wenzhuo" <wenzhuo.lu@intel.com>
Subject: Re: [PATCH v2] ixgbe: fix link down issue on x550em_x
Date: Thu, 25 Feb 2016 01:35:24 +0000
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To: "Richardson, Bruce" <bruce.richardson@intel.com>
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Hi Bruce,

> -----Original Message-----
> From: Richardson, Bruce
> Sent: Wednesday, February 24, 2016 10:27 PM
> To: Lu, Wenzhuo
> Cc: dev@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2] ixgbe: fix link down issue on x550em_x
>=20
> On Mon, Feb 01, 2016 at 04:42:39PM +0800, Wenzhuo Lu wrote:
> > Normally the auto-negotiation is supported by FW. But on
> > X550EM_X_10G_T it's not supported by FW. As the port of X550EM_X_10G_T
> > is 10G. If we connect the port with a peer which is 1G. The link is
> > always down.
> > We have to supprted auto-neg by SW to avoid such link down issue.
> >
> > Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
> > ---
> >  doc/guides/rel_notes/release_2_3.rst |  6 ++++++
> >  drivers/net/ixgbe/ixgbe_ethdev.c     | 38
> ++++++++++++++++++++++++++++++++++++
> >  drivers/net/ixgbe/ixgbe_ethdev.h     |  1 +
> >  3 files changed, 45 insertions(+)
> >
> > diff --git a/doc/guides/rel_notes/release_2_3.rst
> > b/doc/guides/rel_notes/release_2_3.rst
> > index 99de186..a8d34d1 100644
> > --- a/doc/guides/rel_notes/release_2_3.rst
> > +++ b/doc/guides/rel_notes/release_2_3.rst
> > @@ -15,6 +15,12 @@ EAL
> >  Drivers
> >  ~~~~~~~
> >
> > +* **ixgbe: fix link down issue on X550EM_X.**
> > +  Normally the auto-negotiation is supported by FW. SW need not care
> > +about
> > +  that. But on x550em_x, FW doesn't support auto-neg. As the ports of
> > +x550em_x
> > +  are 10G, if we connect the port will a peer which is 1G, the link
> > +will always
> > +  be donw on x550em_x.
> > +  We will support auto-neg by SW to avoid this link down issue.
> >
>=20
> Couple of typos present in the text above.
Sorry for that. I'll correct them. Thanks.

>=20
> /Bruce