Issue 11
© Solarflare Communications 2014
65
Solarflare Server Adapter
User Guide
vf-count=<vf count>
The number of virtual functions (VF) advertised to
the operating system. The Solarflare SFC9000 family
of controllers support a total limit of 127 virtual
functions per port and a total 1024 interrupts.
Depending on the values of msix-limit and vf-msix-
limit, some of these virtual functions may not be
configured.
Enabling all 127 VFs per port with more than one
MSI-X interrupt per VF may not be supported by the
host BIOS - in which case you may get 127 VFs on one
port and none on others. Contact your BIOS vendor
or reduce the VF count.
The sriov parameter is implied if vf-count is greater
than zero.
vf-msix-
limit=<1|2|4|8|16|32|64|128|
256>
The maximum number of interrupts a virtual
function may use.
port-mode=(default|10G|40G>
Configure the port mode to use. This is for SFC9140-
family adapters only. MAC address assignments may
change after altering this setting.
The default mode will select 40G mode.
firmware-variant=<full-
feature|ultra-low-
latency|capture-packed-
stream |auto>
For SFN7000 series adapters only.
The ultra-low-latency variant produces best latency
without support for TX VLAN insertion or RX VLAN
stripping (not currently used features). It is
recommended that Onload customers use the ultra-
low-latency variant.
Default value = auto - means the driver will select
ultra-low-latency by default.
insecure-
filters=<enabled|disabled>
If enabled bypass filter security on non-privileged
functions. This is for SFC9100-family adapters only.
This reduces security in virtualized environments.
The default is disabled.
Table 18: Sfboot Parameters
Parameter
Description