Module Name: src
Committed By: jdolecek
Date: Thu Apr 23 15:54:36 UTC 2020
Modified Files:
src/share/man/man4: sk.4
Log Message:
elaborate on why we don't support hardware checksum offloading, and probably
never will
To generate a diff of this commit:
cvs rdiff -u -r1.23 -r1.24 src/share/man/man4/sk.4
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/share/man/man4/sk.4
diff -u src/share/man/man4/sk.4:1.23 src/share/man/man4/sk.4:1.24
--- src/share/man/man4/sk.4:1.23 Fri Aug 30 09:24:19 2019
+++ src/share/man/man4/sk.4 Thu Apr 23 15:54:36 2020
@@ -1,4 +1,4 @@
-.\" $NetBSD: sk.4,v 1.23 2019/08/30 09:24:19 wiz Exp $
+.\" $NetBSD: sk.4,v 1.24 2020/04/23 15:54:36 jdolecek Exp $
.\"
.\" Copyright (c) 2003, The NetBSD Foundation, Inc.
.\" All rights reserved.
@@ -58,7 +58,7 @@
.\"
.\" $FreeBSD: src/share/man/man4/man4.i386/sk.4,v 1.3 1999/08/28 00:20:29 peter Exp $
.\"
-.Dd August 24, 2019
+.Dd April 23, 2020
.Dt SK 4
.Os
.Sh NAME
@@ -285,6 +285,12 @@ Support for the Marvell Yukon-2 was adde
.An Mark Kettenis Aq Mt kette...@openbsd.org .
.Sh BUGS
Support for checksum offload is unimplemented.
+Particularly for Yukon-II hardware, there are multiple different
+receive and transmit offload silicon bugs which have to be worked
+around in software when using hardware offloading.
+For this reason, support for hardware offloading
+is not very desirable for therse controllers, and unlikely to be
+ever implemented.
.Pp
Performance with at least some Marvell-based adapters is poor,
especially on loaded PCI buses or when the adapters are behind
