I'm not sure I understand your point. To support SGPIO initiators incorporated into SATA host controllers, it is pretty much inevitable that some SGPIO support will have to be added directly into individual drivers for thoese controllers; the SGPIO standard does not define a register level interface for accessing this functionality, so vendor implementations vary. It's possible that with an SGPIO initiator integrated within a SAS host controller, you may be able to use SMP frames to access it, using the messaging defined in SFF-8485 chapter 8 - but I wouldn't bank on it. Andy -----Original Message----- From: linux-kernel-owner@xxxxxxxxxxxxxxx [mailto:linux-kernel-owner@xxxxxxxxxxxxxxx] On Behalf Of Kristen Carlson Accardi Sent: Wednesday, January 31, 2007 15:22 To: Jeff Garzik Cc: Peer Chen; Christoph Hellwig; Prakash Punnoor; Andrew Morton; linux-kernel@xxxxxxxxxxxxxxx; linux-ide@xxxxxxxxxxxxxxx; Kuan Luo Subject: Re: [PATCH] SCSI: Add the SGPIO support for sata_nv.c On Fri, 17 Nov 2006 13:04:30 -0500 Jeff Garzik <jeff@xxxxxxxxxx> wrote: > Peer Chen wrote: > > I didn't get any comment from you guys for new patch, does someone take > > care this patch, do we still need some modification upon it? Or do we > > need re-submit it in other thread? > > For my part, it's in my queue of things to review. I need to figure out > the best way to export this support. > > Jeff Adding SGPIO support directly into an individual SATA driver seems to be a very bad idea since SGPIO is a) a protocol that can be used by many different SATA controllers and is not nvidia specific and b) can also be used by SAS. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ ----------------------------------------------------------------------------------- This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. ----------------------------------------------------------------------------------- - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
