Date: Wed, 24 Sep 2014 14:40:19 +0000 From: Kylie Liang <kylie.liang2@outlook.com> To: "freebsd-scsi@freebsd.org" <freebsd-scsi@freebsd.org> Subject: scatter/gather list support Message-ID: <SNT151-W84E4DC6799F7C2B9F7647DFB10@phx.gbl>
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On http://www.freebsd.org/doc/en/books/arch-handbook/scsi-general.html, it mentions " Actually, it seems like the scatter-gather ability is not used anywhere in the CAM code now. But at least the case for a single non-scattered virtual buffer must be implemented, it is actively used by CAM.". What does it mean? How does CAM level handle scatter-gather I/O request? Thank you.
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