===================================================================
RCS file: /cvsrepo/anoncvs/cvs/src/usr.bin/ssh/scp.1,v
retrieving revision 1.110
retrieving revision 1.111
diff -u -r1.110 -r1.111
--- src/usr.bin/ssh/scp.1	2022/09/19 21:39:16	1.110
+++ src/usr.bin/ssh/scp.1	2022/12/16 03:40:03	1.111
@@ -8,9 +8,9 @@
 .\"
 .\" Created: Sun May  7 00:14:37 1995 ylo
 .\"
-.\" $OpenBSD: scp.1,v 1.110 2022/09/19 21:39:16 djm Exp $
+.\" $OpenBSD: scp.1,v 1.111 2022/12/16 03:40:03 djm Exp $
 .\"
-.Dd $Mdocdate: September 19 2022 $
+.Dd $Mdocdate: December 16 2022 $
 .Dt SCP 1
 .Os
 .Sh NAME
@@ -28,6 +28,7 @@
 .Op Fl o Ar ssh_option
 .Op Fl P Ar port
 .Op Fl S Ar program
+.Op Fl X Ar sftp_option
 .Ar source ... target
 .Sh DESCRIPTION
 .Nm
@@ -278,6 +279,19 @@
 to print debugging messages about their progress.
 This is helpful in
 debugging connection, authentication, and configuration problems.
+.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 EXIT STATUS
 .Ex -std scp