Date: Tue, 01 Sep 2015 15:20:21 -0700 From: Rui Paulo <rpaulo@me.com> To: Adrian Chadd <adrian@freebsd.org>, Gleb Smirnoff <glebius@freebsd.org> Cc: Lawrence Stewart <lstewart@freebsd.org>, Andriy Voskoboinyk <s3erios@gmail.com>, "net@freebsd.org" <net@freebsd.org> Subject: Re: mbufq-less iwn(4) Message-ID: <1441146021.1183.8.camel@me.com> In-Reply-To: <CAJ-Vmokn91fHQyg-AGqCgccRoMS89TuWpQ9RuxL%2B9nmgt%2BX2kQ@mail.gmail.com> References: <20150901112043.GB1023@glebius.int.ru> <CAJ-Vmokn91fHQyg-AGqCgccRoMS89TuWpQ9RuxL%2B9nmgt%2BX2kQ@mail.gmail.com>
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On Tue, 2015-09-01 at 12:33 -0700, Adrian Chadd wrote: > hi, > > We have to do mbuf queues in drivers for wifi, because of 11n > aggregation. So on one hand we want to have if_transmit() apply > backpressure through the stack, but there's also going to be some > buffering. :P net80211 also has an ageq which was added to hold mbufs while the mesh peer link was being established. -- Rui Paulo
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