IPV6 Checksum offload and TSO6
jfvogel at gmail.com
Wed Oct 20 22:52:54 UTC 2010
Looked to me like Michael already has the SCTP stuff in the inet6 code.
Not sure if it needs further enabling or what??
I'm not positive about what cards are in the netperf cluster. Any card
that em, igb, and ixgbe supports can do the TCP/UDP checksum
offloads whether in IPv4 or 6 if handed to it. TSO is a TCP segmentation
so it also is a matter of IPv6 allowing it to do so, at least that is my
SCTP offload can only be handled in the igb and ixgbe drivers, none of
the em hardware can do it (at least not as of today).
Personally its TSO that I care most about, but the protocol checksums
might as well be available too.
On Wed, Oct 20, 2010 at 3:20 PM, Bjoern A. Zeeb <bz at freebsd.org> wrote:
> On Wed, 20 Oct 2010, Jack Vogel wrote:
> I had occasion to think about this, and I was wondering if someone is
>> working to add
>> either or both of these features, Intel's hardware supports it, it does
>> seem that
>> hard to add, or am I missing something?
> Strange that I had been thinking of that last night and talking to
> poeple today. It's kind of on the roadmap here for mid-November.
> It's mostly freebsd infrastructure that's missing for it (along with
> some cleanup on the flags in a couple of places). tuexen@ wanted to
> get the CSUM_* stuff done for SCTP as well but I haven't re-pinged
> him on that one yet.
> Do you know if we have Intel cards in the netperf cluster that can
> actually do it for testing? What's the matrix for the various cards
> for v6 offloads?
> Imho noone does TOE6 yet (correct me if wrong) but I'd like to get
> the others all sorted then.
> Bjoern A. Zeeb Welcome a new stage of life.
> <ks> Going to jail sucks -- <bz> All my daemons like it!
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