Solarflare SFA6902F, User Manual, Page: 297 / 375

Issue 11 © Solarflare Communications 2014 292
Solarflare Server Adapter
User Guide
6.12 Module Parameters
The normal syntax when using parameters is
param=<value>.
Table 72 lists the available parameters in the Solarflare Solaris driver module (
sfxge.conf
):
Table 72: Driver Module Parameters
Parameter Description Values Default
rx_scale_count
Maximum number of RSS channels to
use per port. The actual number may be
lower due to availability of MSI-X
interrupts. There is a maximum of 32
MSI-X interrupts across all network
devices. To use more than 2 MSI-X
interrupts you need to add e.g.
set ddi_msix_alloc_limit=8
in
/etc/system
.
128
rx_coalesce_mod
e
Coalesce RX packets (Large Receive
Offload). 0 = off
1 = on
2 = on, respecting
TCP PSH
boundaries.
0
intr_moderation
Interrupt moderation in μ s. Decreasing
this reduces latency but increases
interrupt rate and therefore CPU usage.
30
mtu
Maximum MTU of an sfxge interface in
bytes (excludes ethernet framing) 1500 - 9000 1500
rxq_size
Number of descriptors in the receive
queue descriptor ring 512 - 4096
must be a power
of 2 value
1024
rx_pkt_mem_max
Per port memory limit for receive packet
buffers 64Mb