Date: Mon, 11 Apr 2011 09:34:15 +0000 From: Alexander Best <arundel@freebsd.org> To: Alexander Motin <mav@FreeBSD.org> Cc: freebsd-scsi@freebsd.org, freebsd-current@freebsd.org, John Baldwin <jhb@freebsd.org> Subject: Re: multiple issues with devstat_*(9) Message-ID: <20110411093415.GA87477@freebsd.org> In-Reply-To: <4DA2C14F.60905@FreeBSD.org> References: <20110331223339.GA13682@freebsd.org> <201104010843.47367.jhb@freebsd.org> <20110404204316.GA11367@freebsd.org> <4D9D9917.3030102@FreeBSD.org> <20110410115644.GA55815@freebsd.org> <4DA210D3.5090807@FreeBSD.org> <20110411025646.GA46088@freebsd.org> <4DA2A33B.8010807@FreeBSD.org> <20110411083821.GA80320@freebsd.org> <4DA2C14F.60905@FreeBSD.org>
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On Mon Apr 11 11, Alexander Motin wrote: > Alexander Best wrote: > > On Mon Apr 11 11, Alexander Motin wrote: > >> Alexander Best wrote: > >>> my cd0 is a pata atapi dvdrom drive and i have the following in my kernel conf: > >>> > >>> device atacore > >>> device ahci > >>> device atajmicron > >>> device atapci > >>> #device atapicd > >>> device atapicam > >>> > >>> device umass > >>> device scbus > >>> device cd > >>> device pass > >>> device da > >>> device random > >>> device pty > >>> device md > >>> > >>> the dmesg entries for cd0 are: > >>> > >>> cam_periph_alloc: attempt to re-allocate valid device cd0 rejected > >>> cdasync: Unable to attach new device due to status 0x6 > >>> cd0 at ata2 bus 0 scbus8 target 0 lun 0 > >>> cd0: <HL-DT-ST DVDRAM GSA-H10N JL12> Removable CD-ROM SCSI-0 device > >>> cd0: 3.300MB/s transfers > >>> cd0: cd present [2149024 x 2048 byte records] > >> Aha, that's it. It is atapicam's lie. atapicam is one of a things that > >> will go away during migration to CAM ATA. If you remove `device > >> atapicam`, but add `options ATA_CAM` instead, CAM will manage that bus > >> directly and report it as ATA. > > > > thanks for the hint. i also read the following in the ahci(4) man page: > > > > " Driver features include support for Serial ATA and ATAPI devices, ..." > > > > ...does that mean that my DVD drive can also attach to the ahci driver? > > If it is SATA and you connect it to AHCI controller -- yes, it will work > with ahci(4) controller driver. no it's PATA. thanks for the help. i'll remove atapicam from my kernel conf and add ATA_CAM. maybe we could have a list of supported controllers in the ahci(4) man page. will the ataahci driver also dissapear soon? cheers. alex > > -- > Alexander Motin -- a13x
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