On 23. May 2012, at 08:22 , Venkat Duvvuru wrote:
Folks,
Can somebody please explain me why tcp checsum calculation is mandated in
the freebsd network stack (tcp_input---in6_cksum) albeit the card supports
it?
Probably Steve is the right person who can answer this.
Just for public
Folks,
Can somebody please explain me why tcp checsum calculation is mandated in
the freebsd network stack (tcp_input---in6_cksum) albeit the card supports
it?
Probably Steve is the right person who can answer this.
/Venkat
On Wed, May 23, 2012 at 11:27 AM, Venkat Duvvuru
Folks,
Could somebody please tell about the base Freebsd version which has LRO
support for IPv6?
I'm using 9.0-RELEASE and I see that tcp_lro_rx is failing.
Please confirm.
/Venkat
___
freebsd-questions@freebsd.org mailing list
http://lists.freebsd.org
version which has LRO
support for IPv6?
I'm using 9.0-RELEASE and I see that tcp_lro_rx is failing.
Please confirm.
/Venkat
___
freebsd-...@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-net
To unsubscribe, send any mail
On 22. May 2012, at 16:50 , Jack Vogel wrote:
The LRO code as it stands right now is IPV4 specific, it would be nice to
extend it, one of
many improvements that may get done at some point.
I am about to commit it to HEAD. Bear another few days with me; I know
I am running late but
Oh, that's right, distracted with other projects and I forgot, now we just
need
to have an LRO that works with forwarding eh :)
You ROCK bz :)
Jack
On Tue, May 22, 2012 at 10:01 AM, Bjoern A. Zeeb b...@freebsd.org wrote:
On 22. May 2012, at 16:50 , Jack Vogel wrote:
The LRO code as it
On 22. May 2012, at 17:04 , Jack Vogel wrote:
Oh, that's right, distracted with other projects and I forgot, now we just
need
to have an LRO that works with forwarding eh :)
That's a 6 line bainaid commit afterwards, basically returning form the LRO
queuing
function in case forwarding is
Thanks for the response.
I observed that there is a significant performance drop in case of IPv6 on
the rx side.
While I'm able to hit line rate ~9.5 Gbps on a 10gb NIC for IPv4..I could
only get ~6 Gbps on the rx front for IPv6...However tx for IPv6 is on
par with IPv4 hitting almost line rates.
LRO is a huge win for 10G (as is TSO on the TX side), so odds are good its
behind the drop,
in any case you'll be able to test that soon :)
Jack
On Tue, May 22, 2012 at 10:35 AM, Venkat Duvvuru venkatduvvuru...@gmail.com
wrote:
Thanks for the response.
I observed that there is a
Ok. I found the reason for the throughput drop in case of IPv6.
Reason is that the tcp check sum calculation is mandated in case of IPv6
irrespective of whether the card is doing it or not (checksum offload). Is
there a reason why freebsd is doing it that way?
/Venkat
On Tue, May 22, 2012 at
10 matches
Mail list logo
