Date: Wed, 5 Jun 2013 08:40:37 -0500 From: Jim Thompson <jim@netgate.com> To: Ivan Voras <ivoras@freebsd.org> Cc: "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: netmap on wireless NIC Message-ID: <580124BA-5EAA-4EE2-8BAA-7317E4BB521D@netgate.com> In-Reply-To: <konc6q$udf$1@ger.gmane.org> References: <CAKZq%2BrfJNRpvigA=4OXfvjhHm35XNJRpAk4ONHNudeG-sr=3YQ@mail.gmail.com> <konc6q$udf$1@ger.gmane.org>
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On Jun 5, 2013, at 7:50 AM, Ivan Voras <ivoras@freebsd.org> wrote: > On 04/06/2013 23:06, Chao Xu wrote: >> Hello, >>=20 >> Is it possible to hacking some wireless NIC driver (carl9170 for example)= >> to enable netmap on it? I guess this is possible because wireless drivers= >> also manage packets using ring buffers. My goal is to access the raw >> packets as quickly as possible, not to achieve high data rate. Is there a= ny >> argument against doing so? Thank you. >=20 > Would using netmap on a wireless NIC make sense at all? There is no way th= at current wifi technologies could achieve the PPS rates at which you would n= eed netmap, and there already are other ways (e.g. pcap) to > access raw packets. 802.11ad and 8 antenna 802.11ac could pass 7gbps, in theory.=20
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