From: David Christensen <drc@linux.vnet.ibm.com>
To: users@dpdk.org
Subject: Re: [dpdk-users] How to configure an Ethernet Driver to ignore the Ethertype
Date: Wed, 26 Feb 2020 13:58:02 -0800 [thread overview]
Message-ID: <71565765-d37d-814f-a509-db810fbb36b0@linux.vnet.ibm.com> (raw)
In-Reply-To: <CAJC5fi1-Opa9Ux6P=emry0ypoMh95Jj78-=CGXURd4fcVVXsaQ@mail.gmail.com>
> I was wondering if there is a way to get the Ethernet driver to ignore the
> Ethertype. The problem I am having is that I am dealing with a switch chip
> that is redirecting packets to the processor via an offload ethernet
> device. Before offload the switch chip adds a header that pushes the DA
> into the spot where the EtherType is normally. As a result, the ethertype
> is essentially a random value so some packets will look like that have a
> snap header and the driver will conclude that the packet is corrupted I
> presume. I am working with the IXGBE driver.
Are you talking about HiGig/HiGig2 headers? I think your support in the
DPDK will be limited to octeontx2 (look for switch_header="higig2" in
https://fast.dpdk.org/doc/pdf-guides/nics-master.pdf).
Dave
next prev parent reply other threads:[~2020-02-26 21:58 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-02-21 19:19 Jim Murphy
2020-02-26 21:58 ` David Christensen [this message]
2020-02-26 23:53 ` Jim Murphy
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