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authorandre <andre@FreeBSD.org>2006-09-06 22:07:14 +0000
committerandre <andre@FreeBSD.org>2006-09-06 22:07:14 +0000
commitf88e673aad2d1d0b5d140bf94727f31efa4d919c (patch)
treed27b7763a9675c7df52d8d9c0eeb35306a487b58 /sbin/ifconfig/ifconfig.8
parent55dc203a73ebf4a1c91b30e5dc468700df02d68b (diff)
downloadFreeBSD-src-f88e673aad2d1d0b5d140bf94727f31efa4d919c.zip
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Make TSO (TCP segmentation offload) capabilities visible and accessible with
'ifconfig em0 tso' and 'ifconfig em0 -tso'. TSO for IPv4 and IPv6 is always enabled or disabled together. The driver may enable only one if it doesn't support both. Document 'tso' and '-tso' in the ifconfig(8) man pages. Sponsored by: TCP/IP Optimization Fundraise 2005
Diffstat (limited to 'sbin/ifconfig/ifconfig.8')
-rw-r--r--sbin/ifconfig/ifconfig.817
1 files changed, 17 insertions, 0 deletions
diff --git a/sbin/ifconfig/ifconfig.8 b/sbin/ifconfig/ifconfig.8
index 51dd76f..041cd6c 100644
--- a/sbin/ifconfig/ifconfig.8
+++ b/sbin/ifconfig/ifconfig.8
@@ -356,6 +356,23 @@ support, the exact level of offloading varies between drivers.
If the driver supports user-configurable checksum offloading,
disable receive (or transmit) checksum offloading on the interface.
These settings may not always be independent of each other.
+.It Cm tso
+If the driver supports
+.Xr tcp 4
+segmentation offloading, enable TSO on the interface.
+Some drivers may not be able to support TSO for
+.Xr ip 4
+and
+.Xr ip6 4
+packets, so they may enable only one of them.
+.It Fl tso
+If the driver supports
+.Xr tcp 4
+segmentation offloading, disable TSO on the interface.
+It will always disable TSO for
+.Xr ip 4
+and
+.Xr ip6 4 .
.It Cm vlanmtu , vlanhwtag
If the driver offers user-configurable VLAN support, enable
reception of extended frames or tag processing in hardware,
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