Date: Wed, 8 Mar 2017 09:28:37 -0500 From: Mike Tancsa <mike@sentex.net> To: Navdeep Parhar <nparhar@gmail.com> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: Chelsio netmap support ? (RELENG_11) Message-ID: <d8d41dfa-1b45-1d50-aeb3-bf921f2cfe9d@sentex.net> In-Reply-To: <CAPFoGT8pfNE2vNbSuytv0K_4GpYyO6UYTqPp4R-yLVFOfavbug@mail.gmail.com> References: <93e10699-ecc7-c062-bf85-a26de0de9633@sentex.net> <CAPFoGT9u4Ctw0cMtXeEC=6xP--sSW8rEbdSwGwcXZOpRtYp=EQ@mail.gmail.com> <CAPFoGT8iQg9on9xi%2ByNkZJF-knmHE7b58G1u18SvJyVAJa7MPA@mail.gmail.com> <CAPFoGT_CYSPLrB6h742U%2BTS5qqKeLdrF2tnPGGw%2BiyBwPjmDWw@mail.gmail.com> <c7f36da2-ce4d-4377-c3d5-509c9ba692a5@sentex.net> <CAPFoGT-oxsVCNAm05porR0cJi7o_4GTrw-O8V9zZTpRu9_q82Q@mail.gmail.com> <901224a7-f3ed-84a4-5402-3542cd0e865b@sentex.net> <CAPFoGT8pfNE2vNbSuytv0K_4GpYyO6UYTqPp4R-yLVFOfavbug@mail.gmail.com>
next in thread | previous in thread | raw e-mail | index | archive | help
On 3/7/2017 9:08 PM, Navdeep Parhar wrote: > On Tue, Mar 7, 2017 at 5:46 PM, Mike Tancsa <mike@sentex.net> wrote: > >> >> # dmesg | grep netm >> netmap: loaded module >> vcxl0: netmap queues/slots: TX 2/1023, RX 2/1024 >> vcxl0: 1 txq, 1 rxq (NIC); 1 txq, 1 rxq (TOE); 2 txq, 2 rxq (netmap) >> vcxl1: netmap queues/slots: TX 2/1023, RX 2/1024 >> vcxl1: 1 txq, 1 rxq (NIC); 1 txq, 1 rxq (TOE); 2 txq, 2 rxq (netmap) >> igb0: netmap queues/slots: TX 4/1024, RX 4/1024 >> igb1: netmap queues/slots: TX 4/1024, RX 4/1024 >> >> It maxes out at about 800Kpps with and without netmap. Is there a way > > Are you actually using a netmap based application that acts as a > packet router or is this just the vcxl interface running as a normal > ifnet? the later, vcxl running normal ifnet. I thought there would be a benefit to utilizing netmap ? Sorry, this is not clear to me. > >> to increase the queues for the Chelsio nic, like the onboard igb ? > > If you're not running a netmap based router get rid of the num_vis=2 > and simply try with the cxl0/cxl1 interfaces. They should each have 4 > rxq/4 txq on your system. In case you want to increase the number of > queues, use this: The tests with the regular cxl also show the box topping out at 0.8Mpps for forwarding. > > The "NIC" queues are the normal tx/rx queues, the "netmap" queues are > active when the interface is in netmap mode. > > Does netsend generate a single flow or multiple flows? If it's a > single flow it will use a single queue only. I think its as a single flow. However, I was using a separate box to generate a second flow as well. It still topped out at about 800Kpps before dropping packets. ---Mike -- ------------------- Mike Tancsa, tel +1 519 651 3400 Sentex Communications, mike@sentex.net Providing Internet services since 1994 www.sentex.net Cambridge, Ontario Canada http://www.tancsa.com/
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?d8d41dfa-1b45-1d50-aeb3-bf921f2cfe9d>