===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/sftp.1,v
retrieving revision 1.142
retrieving revision 1.143
diff -u -r1.142 -r1.143
--- src/usr.bin/ssh/sftp.1	2022/09/19 21:39:16	1.142
+++ src/usr.bin/ssh/sftp.1	2022/12/16 03:40:03	1.143
@@ -1,4 +1,4 @@
-.\" $OpenBSD: sftp.1,v 1.142 2022/09/19 21:39:16 djm Exp $
+.\" $OpenBSD: sftp.1,v 1.143 2022/12/16 03:40:03 djm Exp $
 .\"
 .\" Copyright (c) 2001 Damien Miller.  All rights reserved.
 .\"
@@ -22,7 +22,7 @@
 .\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 .\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 .\"
-.Dd $Mdocdate: September 19 2022 $
+.Dd $Mdocdate: December 16 2022 $
 .Dt SFTP 1
 .Os
 .Sh NAME
@@ -44,6 +44,7 @@
 .Op Fl R Ar num_requests
 .Op Fl S Ar program
 .Op Fl s Ar subsystem | sftp_server
+.Op Fl X Ar sftp_option
 .Ar destination
 .Sh DESCRIPTION
 .Nm
@@ -320,6 +321,19 @@
 .It Fl v
 Raise logging level.
 This option is also passed to ssh.
+.It Fl X Ar sftp_option
+Specify an option that controls aspects of SFTP protocol behaviour.
+The valid options are:
+.Bl -tag -width Ds
+.It Cm nrequests Ns = Ns Ar value
+Controls how many concurrent SFTP read or write requests may be in progress
+at any point in time during a download or upload.
+By default 64 requests may be active concurrently.
+.It Cm buffer Ns = Ns Ar value
+Controls the maximum buffer size for a single SFTP read/write operation used
+during download or upload.
+By default a 32KB buffer is used.
+.El
 .El
 .Sh INTERACTIVE COMMANDS
 Once in interactive mode,