D61406.1794448515.diff
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	diff --git a/sbin/nvmecontrol/format.c b/sbin/nvmecontrol/format.c
	--- a/sbin/nvmecontrol/format.c
	+++ b/sbin/nvmecontrol/format.c
	@@ -204,6 +204,16 @@
	"Only one of -E, -C or --ses may be specified\n");
	arg_help(argc, argv, f);
	}
	+ if (opt.ms != NONE && opt.ms > 1)
	+ errx(EX_USAGE, "metadata setting must be 0 or 1");
	+ if (opt.pi != NONE && opt.pi > 3)
	+ errx(EX_USAGE,
	+ "protection information type must be between 0 and 3");
	+ if (opt.pil != NONE && opt.pil > 1)
	+ errx(EX_USAGE,
	+ "protection information location must be 0 or 1");
	+ if (opt.ses > SES_CRYPTO)
	+ errx(EX_USAGE, "secure erase setting must be between 0 and 2");

	target = opt.dev;
	lbaf = opt.lbaf;
	diff --git a/sbin/nvmecontrol/nvmecontrol.8 b/sbin/nvmecontrol/nvmecontrol.8
	--- a/sbin/nvmecontrol/nvmecontrol.8
	+++ b/sbin/nvmecontrol/nvmecontrol.8
	@@ -33,7 +33,7 @@
	.\"
	.\" Author: Jim Harris <jimharris@FreeBSD.org>
	.\"
	-.Dd September 21, 2026
	+.Dd November 10, 2026
	.Dt NVMECONTROL 8
	.Os
	.Sh NAME
	@@ -573,6 +573,24 @@
	Enables Cryptographic Erase during format.
	All user data is erased cryptographically by deleting the encryption key,
	rendering it unintelligible.
	+.It Fl Fl ses Ar ses
	+Secure Erase Settings.
	+.Bl -tag -compact -width 6n
	+.It Dv 0
	+Do not perform a secure erase.
	+.It Dv 1
	+User Data Erase, as with
	+.Fl E .
	+.It Dv 2
	+Cryptographic Erase, as with
	+.Fl C .
	+.El
	+Only one of
	+.Fl E ,
	+.Fl C ,
	+or
	+.Fl Fl ses
	+may be specified.
	.El
	.Pp
	When formatting specific namespace, existing values are used as defaults.