Kenneth D. Merry
80f090111a
Support formatting NVMe namespaces through the existing format subcommand. The format subcommand now dispatches on the device protocol, in the same way the identify and persist subcommands do, and issues the NVMe FORMAT NVM command for NVMe devices. The SCSI syntax and behavior are unchanged. The NVMe-specific options are -e (secure erase setting), -G (format all namespaces), -f (LBA format), -l (protection information location), -m (metadata setting) and -p (protection information type). The -q and -y options work for both protocols; NVMe formats gain the same confirmation question that SCSI formats have always had. The -r and -w options are SCSI only; -r returns an error for NVMe devices and -w has no effect, since the NVMe format command does not complete until the format is finished. The default timeout for NVMe is 30 seconds for a cryptographic erase and 30 minutes otherwise; the generic -t option overrides it. sbin/camcontrol/nvformat.c: New file, the NVMe format backend for the format subcommand. sbin/camcontrol/camcontrol.c: Dispatch the format subcommand to scsiformat() or nvmeformat() based on the device protocol. sbin/camcontrol/camcontrol.h: Add the nvmeformat() prototype. sbin/camcontrol/Makefile: Add nvformat.c to the build. sbin/camcontrol/camcontrol.8: Document NVMe support in the format subcommand section, and note the differences from SCSI where they occur. Co-authored-by: Claude Fable 5 <[email protected]> Reviewed by: imp MFC after: 1 week Sponsored by: Spectra Logic Differential Revision: https://reviews.freebsd.org/D59535
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