when i disabled LRO it ruined communication on the port to network (altough from host was ok), everything else looks good and so far I had no problem with big packets coming from host, so -tso did it, thank you!
On Thu, Feb 4, 2016 at 12:35 PM, Luigi Rizzo <ri...@iet.unipi.it> wrote: > disable all hardware accelerations when using netmap. > > cheers > luigi > > On Thu, Feb 4, 2016 at 3:34 PM, Eduardo Meyer <dudu.me...@gmail.com> > wrote: > > mtu is good, TSO was on, thank you will retest right now. > > > > which other port features should I disable? I only disabled txcsum and > > rxcsum before, now tso on the list, anything else in netmap mode? > > > > On Thu, Feb 4, 2016 at 12:29 PM, Luigi Rizzo <ri...@iet.unipi.it> wrote: > >> > >> Make sure you disable TSO on the interface used in netmap > >> mode, and then check that you use an MTU of 1500 on that > >> interface. > >> You should not receive frames larger than MTU coming from > >> the host in these conditions. > >> > >> cheers > >> luigi > >> > >> > >> On Thu, Feb 4, 2016 at 3:26 PM, Eduardo Meyer <dudu.me...@gmail.com> > >> wrote: > >> > hello, > >> > > >> > I have a netmap application which has host mode bridge/fwd, with > default > >> > settings I have the following error some often: > >> > > >> > 884.260394 [2950] netmap_transmit igb1 from_host, drop > packet > >> > size 2962 > 2048 > >> > > >> > the only application which relies on host mode is bird, so those > packets > >> > are probably from bird daemon, when I get those errors I get bird > >> > sessions > >> > failing and restart > >> > > >> > I raised dev.netmap.buf_size to 5000 it ajusted to 5120, things got > >> > better > >> > but I still have logs: > >> > > >> > netmap_transmit igb1 from_host, drop packet size 5858 > 5120 > >> > > >> > Now the main question is, when dev.netmap.buf_size is 2048 the > >> > application > >> > uses 1.3G of RAM but when I raise to 5120 it uses 3G of RAM. > >> > > >> > So I need to understand, is this packet size really related from what > I > >> > get > >> > from the application packets coming from host to netmap? If so can I > >> > allow > >> > for bigger sizes, like 16k (lo0 mtu) without pre-alloc so much more > RAM? > >> > > >> > thank you > >> > > >> > E. Meyer > >> > _______________________________________________ > >> > freebsd-net@freebsd.org mailing list > >> > https://lists.freebsd.org/mailman/listinfo/freebsd-net > >> > To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org > " > >> > >> > >> > >> -- > >> > -----------------------------------------+------------------------------- > >> Prof. Luigi RIZZO, ri...@iet.unipi.it . Dip. di Ing. > dell'Informazione > >> http://www.iet.unipi.it/~luigi/ . Universita` di Pisa > >> TEL +39-050-2217533 . via Diotisalvi 2 > >> Mobile +39-338-6809875 . 56122 PISA (Italy) > >> > -----------------------------------------+------------------------------- > > > > > > > > > > -- > > =========== > > Eduardo Meyer > > pessoal: dudu.me...@gmail.com > > profissional: ddm.farmac...@saude.gov.br > > > > -- > -----------------------------------------+------------------------------- > Prof. Luigi RIZZO, ri...@iet.unipi.it . Dip. di Ing. dell'Informazione > http://www.iet.unipi.it/~luigi/ . Universita` di Pisa > TEL +39-050-2217533 . via Diotisalvi 2 > Mobile +39-338-6809875 . 56122 PISA (Italy) > -----------------------------------------+------------------------------- > -- =========== Eduardo Meyer pessoal: dudu.me...@gmail.com profissional: ddm.farmac...@saude.gov.br _______________________________________________ freebsd-net@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/freebsd-net To unsubscribe, send any mail to "freebsd-net-unsubscr...@freebsd.org"
