Solarflare
Server
Adapter
User
Guide
Solarflare
Adapters
on
FreeBSD
Issue
20
©
Solarflare
Communications
2017
302
vf
‐
count=<vf
count>
The
number
of
virtual
functions
(VF)
advertised
to
the
operating
system
for
each
Physical
Function
on
this
physical
network
port.
SFN7000
and
SFN8000
series
adapters
have
a
total
limit
of
2048
interrupts.
Earlier
adapters
support
a
total
limit
of
127
virtual
functions
per
port
and
a
total
of
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.
Changes
to
this
setting
with
sfboot
require
a
cold
reboot
to
become
effective.
vf
‐
msix
‐
limit=
1|2|4|8|16|32|64|128|256
The
maximum
number
of
interrupts
a
virtual
function
may
use.
pf
‐
vlans=<tag>[,<tag>[,...]]|none
Comma
separated
list
of
VLAN
tags
for
each
PF
in
the
range
0
‐
4094
‐
see
sfboot
‐‐
help
for
details.
switch
‐
mode=
default|sriov|partitioning|
partitioning
‐
with
‐
sriov|pfiov
Specifies
the
mode
of
operation
that
the
port
will
be
used
in:
default
‐
single
PF
created,
zero
VFs
created.
sriov
‐
SR
‐
IOV
enabled,
single
PF
created,
VFs
configured
with
vf
‐
count
.
partitioning
‐
PFs
configured
with
pf
‐
count
,
VFs
configured
with
vf
‐
count
.
See
for
details.
partitioning
‐
with
‐
sriov
‐
SR
‐
IOV
enabled,
PFs
configured
with
pf
‐
count
,
VFs
configured
with
vf
‐
count
.
See
for
details.
pfiov
‐
PFIOV
enabled,
PFs
configured
with
pf
‐
count
,
VFs
not
supported.
Changes
to
this
setting
with
sfboot
require
a
cold
reboot
to
become
effective.
Table
72:
Sfboot
Per
‐
adapter
Parameters
Parameter
Description