Date: Fri, 1 Jun 2007 13:28:17 +0900 From: "Hidetoshi Shimokawa" <simokawa@FreeBSD.ORG> To: "Scott Long" <scottl@samsco.org> Cc: freebsd-scsi@freebsd.org Subject: Re: scsi_target with multiple luns Message-ID: <626eb4530705312128x503bf613q740cbe855d225346@mail.gmail.com> In-Reply-To: <465F955E.7050103@samsco.org> References: <86tztspdil.wl%simokawa@FreeBSD.ORG> <465F955E.7050103@samsco.org>
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On 6/1/07, Scott Long <scottl@samsco.org> wrote: > > Maybe, we should rewrite scsi_target in kernel space with GEOM support.. > > I'm unclear on how GEOM would fix this. Also, scsi targets aren't > always DA devices. I dedicated scsi_da_target device that is backed > by GEOM might be interesting, though. Even more interesting would be > a direct DMA method that required no KVA mappings for the data. > > Scott I don't say GEOM fixes the problem. I just say if it's implemented in kernel, we don't need to care about the context of userland. Though it's true that it's not only for DA device, I think using GEOM would be useful for applications such as iSCSI. -- /\ Hidetoshi Shimokawa \/ simokawa@FreeBSD.ORG
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