Date: Fri, 17 Mar 2017 23:35:29 +0100 From: =?UTF-8?Q?Olivier_Cochard=2DLabb=C3=A9?= <olivier@freebsd.org> To: Vincenzo Maffione <v.maffione@gmail.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: Are ./valte-ctl and ./bridge friends or competitors? Message-ID: <CA%2Bq%2BTcobz8hhcUg%2BX5z5wuVpMmcF9coQhm4J3u7Sh8yWdkDe=g@mail.gmail.com> In-Reply-To: <CA%2B_eA9jYxRoi2HPcVjKbifTM43nnHeMQGDmmQvsw5UdXtLmFug@mail.gmail.com> References: <58CBA727.3040108@omnilan.de> <58CBBF7A.8050604@omnilan.de> <CA%2B_eA9jYxRoi2HPcVjKbifTM43nnHeMQGDmmQvsw5UdXtLmFug@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On Fri, Mar 17, 2017 at 6:51 PM, Vincenzo Maffione <v.maffione@gmail.com> wrote: > > When using your physical NICs with netmap, you need to disable the > offloadings because netmap is not able to program the NIC to perform thes= e > offloadings. This is a design decision that has been taken to preserve > simplicity and efficiency. > =E2=80=8BHi, What do you mean by efficiency ? For the netmap's pkt-gen tool, the option of using range for source or destination IP address has some big impact because the software checksum calculation. Hopefully the Chelsio drivers allow to re-enable checksum offloading=E2=80= =8B in netmap mode: This is mandatory for reaching 10G line-rate with pkt-gen (with the range option). Regards, Olivier
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CA%2Bq%2BTcobz8hhcUg%2BX5z5wuVpMmcF9coQhm4J3u7Sh8yWdkDe=g>