Module Name: src
Committed By: elad
Date: Sat Sep 26 04:51:21 UTC 2009
Modified Files:
src/share/man/man4: bge.4
Log Message:
PR/35795: Greg A. Woods: bge(4) doesn't describe the sysctl it uses
Use a slightly adjusted version of the diff in the PR. For proper credits,
the information in the added bit comes from a posting by Jonathan Stone.
To generate a diff of this commit:
cvs rdiff -u -r1.10 -r1.11 src/share/man/man4/bge.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/bge.4
diff -u src/share/man/man4/bge.4:1.10 src/share/man/man4/bge.4:1.11
--- src/share/man/man4/bge.4:1.10 Mon Aug 25 08:23:00 2008
+++ src/share/man/man4/bge.4 Sat Sep 26 04:51:21 2009
@@ -1,4 +1,4 @@
-.\" $NetBSD: bge.4,v 1.10 2008/08/25 08:23:00 cegger Exp $
+.\" $NetBSD: bge.4,v 1.11 2009/09/26 04:51:21 elad Exp $
.\"
.\" Copyright (c) 2003 The NetBSD Foundation, Inc.
.\" All rights reserved.
@@ -27,7 +27,7 @@
.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
.\" POSSIBILITY OF SUCH DAMAGE.
.\"
-.Dd August 25, 2008
+.Dd September 26, 2009
.Dt BGE 4
.Os
.Sh NAME
@@ -68,6 +68,18 @@
See
.Xr ifconfig 8
for information on how to enable this feature.
+.Pp
+The level of interrupt mitigation for received packets can be adjusted
+with the
+.Li hw.bge.rx_lvl
+.Xr sysctl 8
+control.
+A value of 1 yields a
+.Nm
+interrrupt for every two full-sized Ethernet frames.
+Each increment of the value will, roughly, halve receive interrupt rate,
+up to a maximum of 5, which interrupts about every 30 to 40 full-sized
+TCP segments.
.Sh SEE ALSO
.Xr arp 4 ,
.Xr bce 4 ,
