Solarflare
Server
Adapter
User
Guide
Solarflare
Adapters
on
FreeBSD
Issue
20
©
Solarflare
Communications
2017
323
rx_lane1_disp_err
Port
error
condition.
rx_lane2_disp_err
Port
error
condition.
rx_lane3_disp_err
Port
error
condition.
rx_match_fault
Number
of
packets
received
which
did
not
match
any
filter.
rx_nodesc_drop_cnt
Number
of
packets
dropped
by
the
network
adapter
because
of
a
lack
of
RX
descriptors
in
the
RX
queue.
Packets
can
be
dropped
by
the
NIC
when
there
are
insufficient
RX
descriptors
in
the
RX
queue
to
allocate
to
the
packet.
This
problem
occurs
if
the
receive
rate
is
very
high
and
the
network
adapter
receive
cycle
process
has
insufficient
time
between
processing
to
refill
the
queue
with
new
descriptors.
A
number
of
different
steps
can
be
tried
to
resolve
this
issue:
•
Disable
the
irqbalance
daemon
in
the
OS
•
Distribute
the
traffic
load
across
the
available
CPU/cores
by
setting
rss_cpus=cores.
Refer
to
Receive
Side
Scaling
section
•
Increase
receive
queue
size
using
ethtool.
tx_octets
Number
of
bytes
transmitted.
tx_pkts
Number
of
packets
transmitted.
tx_unicst_pkts
Number
of
unicast
packets
transmitted.
Includes
flow
control
packets.
tx_multicst_pkts
Number
of
multicast
packets
transmitted.
tx_brdcst_pkts
Number
of
broadcast
packets
transmitted.
tx_pause_pkts
Number
of
pause
frames
transmitted
with
valid
pause
op_code.
tx_le_64_pkts
Number
of
frames
transmitted
where
the
length
is
less
than
or
equal
to
64
bytes.
tx_65_to_127_pkts
Number
of
frames
transmitted
where
the
length
is
between
65
and
127
bytes
Table
80:
Port
statistics
Field
Description