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D21536.diff

Index: head/share/man/man4/nvdimm.4
===================================================================
--- head/share/man/man4/nvdimm.4
+++ head/share/man/man4/nvdimm.4
@@ -27,7 +27,7 @@
.\"
.\" $FreeBSD$
.\"
-.Dd August 23, 2019
+.Dd September 5, 2019
.Dt NVDIMM 4
.Os
.Sh NAME
@@ -75,7 +75,7 @@
.Pp
Also, for each SPA, the geom provider
.Pa spaNNN
-is created, which can be used to create a conventional filesystem (e.g.
+is created, which can be used to create a conventional filesystem (e.g.,
by
.Xr newfs 8 )
and
@@ -86,6 +86,18 @@
and
.Pa /dev/spaNNN
is coherent.
+.Pp
+The
+.Nm
+driver has support for reading NVDIMM namespaces (if supported by your
+hardware and already configured by some other mechanism, e.g., a BIOS
+configuration screen).
+The driver will provide a
+.Pa /dev/nvdimm_spaNNNnsMMM
+device node and
+.Pa spaNNNnsMMM
+geom provider for each namespace in a SPA, which behave analogously to their
+full-SPA cousins described above.
.Sh SEE ALSO
.Xr ACPI 4 ,
.Xr GEOM 4 ,

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