Date: Mon, 9 Jul 2007 15:34:43 -0400 From: John Baldwin <jhb@freebsd.org> To: Hans Petter Selasky <hselasky@c2i.net> Cc: freebsd-hackers@freebsd.org, freebsd-usb@freebsd.org Subject: Re: New USB stack and Zero copy. Message-ID: <200707091534.44421.jhb@freebsd.org> In-Reply-To: <200707071814.24578.hselasky@c2i.net> References: <200707040901.33019.hselasky@c2i.net> <200707061641.36396.jhb@freebsd.org> <200707071814.24578.hselasky@c2i.net>
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On Saturday 07 July 2007 12:14:24 pm Hans Petter Selasky wrote: > On Friday 06 July 2007 22:41, John Baldwin wrote: > > On Friday 06 July 2007 02:59:39 am Hans Petter Selasky wrote: > > > On Friday 06 July 2007 01:35, John Baldwin wrote: > > > > On Thursday 05 July 2007 04:25:17 pm John Baldwin wrote: > > > > > On Thursday 05 July 2007 03:31:59 am Hans Petter Selasky wrote: > > > > > > On Wednesday 04 July 2007 19:35, John-Mark Gurney wrote: > > > > > > > Hans Petter Selasky wrote this message on Wed, Jul 04, 2007 at > > > > > Huh? The bounce pages are preallocated, so bus_dmamap_load() isn't going > > to be allocating things. > > When are they allocated ? UTSL. bus_dma_tag_create() (if you pass BUS_DMA_ALLOCNOW) or bus_dmamap_create() for the first map belonging to a tag. -- John Baldwin
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