On Thu, Nov 28, 2024 at 08:21:16AM -0700, Keith Busch wrote: > I think of copy a little differently. When you do a normal write > command, the host provides the controller a vector of sources and > lengths. A copy command is like a write command, but the sources are > just logical block addresses instead of memory addresses. > > Whatever solution happens, it would be a real shame if it doesn't allow > vectored LBAs. The token based source bio doesn't seem to extend to > that. POPULATE TOKEN as defined by SCSI/SBC takes a list of LBA ranges as well.
