Netmap - Vale switch - tcp problem

[Anthony Arnaud]

I already disabled the checksum, the vtnet config is:

ifconfig vtnet1 -txcsum -rxcsum -tso4 -tso6 -lro -txcsum6 -rxcsum6 -vlanmtu
-vlanhwtag -vlanhwfilter -vlanhwtso -vlanhwcsum up promisc

vtnet1:
flags=28943<UP,BROADCAST,RUNNING,PROMISC,SIMPLEX,MULTICAST,PPROMISC> metric
0 mtu 1500
        options=1800a8<VLAN_MTU,JUMBO_MTU,VLAN_HWCSUM,LINKSTATE,NETMAP>
        ether 0e:bd:ec:7a:08:06
        media: Ethernet 10Gbase-T <full-duplex>
        status: active
        nd6 options=29<PERFORMNUD,IFDISABLED,AUTO_LINKLOCAL>

Sorry for not having posted vtnet config before.
PS: VLAN_HWCSUM is not switchable off for some reason!
the problem is not that.

Cheers
Anthony




Il giorno gio 28 mag 2020 alle ore 16:05 Luigi Rizzo <rizzo at iet.unipi.it>
ha scritto:

>
>
> On Thursday, May 28, 2020, Anthony Arnaud <antho.arnaudisce at gmail.com>
> wrote:
>
>> Hi everyone!
>> I would like to create a vale switch with an interface attached with the
>> host stack and some virtual.
>> My env is a VM with FBSD-12.1 12.1-RELEASE FreeBSD 12.1-RELEASE r354233
>> GENERIC  amd64
>> and VirtIO support.
>>
>> I performed:
>>
>> vale-ctl -h vale0:vtnet1
>> vale-ctl -n vi0
>> vale-ctl -a vale0:vi0
>>
>> 615.925514 bdg_ctl [149] bridge:0 port:0 vale0:vtnet1
>> 615.925559 bdg_ctl [149] bridge:0 port:1 vale0:vtnet1^
>> 615.925572 bdg_ctl [149] bridge:0 port:2 vale0:vi0
>>
>> vtnet1 is configured as mirror port.
>> But if:
>>
>> tcpdump -i vtnet1
>> or
>> tcpdump -i vale0:vi0
>>
>> why can't I see any TCP packets?
>> UDP and ICMP packet are ok.
>>
>> Without vale switch tcpdump show all TCP packets correctly.
>
>
> You have to disable checksum offloading on vtnet1.
>
> Cheers
> Luigi
>
> It is a bug?
>> Thanks to all!
>> <freebsd-net at freebsd.org>
>> _______________________________________________
>> freebsd-net at freebsd.org mailing list
>> https://lists.freebsd.org/mailman/listinfo/freebsd-net
>> To unsubscribe, send any mail to "freebsd-net-unsubscribe at freebsd.org"
>>
>
>
> --
> -----------------------------------------+-------------------------------
>  Prof. Luigi RIZZO, rizzo at iet.unipi.it  . Dip. di Ing. dell'Informazione
>  http://www.iet.unipi.it/~luigi/        . Universita` di Pisa
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