Installation guide

In Red Hat Enterprise Linux 6.4 and onward, the valid values for this parameter are Al l
(the default), which enables IP, TCP and UDP checksum offloading for both IPv4 and IPv6;
T C P /UD P (v4 ,v6 ), which enables TCP and UD P checksum offloading for both IPv4 and
IPv6; T C P /UD P (v4 ), which enables TCP and UDP checksum offloading for IPv4 only;
and T C P (v4 ), which enables only TCP checksum offloading for IPv4 only.
In Red Hat Enterprise Linux 6.3 and earlier, the valid values for this parameter are
T C P /UD P (the default value), which enables TCP and UDP checksum offload; T C P , which
enables only TCP checksum offload; or D i sabl e, which disables TX checksum offload.
O f flo ad .T x.LSO
A Boolean value that enables TX TCP Large Segment Offload (LSO). The default value is 1
(enabled).
O f flo ad .R x.Ch ecksu m
Specifies the RX checksum offloading mode.
In Red Hat Enterprise Linux 6.4 and onward, the valid values for this parameter are Al l
(the default), which enables IP, TCP and UDP checksum offloading for both IPv4 and IPv6;
T C P /UD P (v4 ,v6 ), which enables TCP and UD P checksum offloading for both IPv4 and
IPv6; T C P /UD P (v4 ), which enables TCP and UDP checksum offloading for IPv4 only;
and T C P (v4 ), which enables only TCP checksum offloading for IPv4 only.
In Red Hat Enterprise Linux 6.3 and earlier, the valid values are D i sabl e (the default),
which disables RX checksum offloading; Al l , which enables TCP, UD P, and IP checksum
offloading; T C P /UD P , which enables TCP and UD P checksum offloading; and T C P , which
enables only TCP checksum offloading.
T est and d eb u g p aramet ers
Important
Test and debug parameters should only be used for testing or debugging; they should not be
used in production.
T est O n ly.D elayCo n n ect ( ms)
The period for which to delay connection upon startup, in milliseconds. The default value is
0 .
T est O n ly.D PCC h eckin g
Sets the DPC checking mode. 0 (the default) disables D PC checking. 1 enables DPC
checking; each hang test verifies DPC activity and acts as if the DPC was spawned. 2
clears the device interrupt status and is otherwise identical to 1.
T est O n ly.Scat ter- G at h er
A Boolean value that determines whether scatter-gather functionality is enabled. The default
value is 1 (enabled). Setting this value to 0 disables scatter-gather functionality and all
dependent capabilities.
T est O n ly.In t erru p t R eco very
A Boolean value that determines whether interrupt recovery is enabled. The default value is
1 (enabled).
Net KVM Driver Paramet ers
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