Users Guide

8–VMware Driver Software
Networking Support, Drivers
63 BC0054508-00 J
enable_default_queue_filters
Use the optional parameter enable_default_queue_filters to enable the
classification filters on the default queue. The hardware supports a total of 512
classification filters that are equally divided among the ports of an adapter. For
example, a quad-port adapter has 128 filters per port. For NPAR configuration,
filters are applied on the default queue to support traffic switching between the
partitions belonging to the same physical port.
When the quantity of filters exceeds the hardware limits, the message, Rx
filters on NetQ Rx Queue 0 exhausted appears in the vmkernel logs.
The message indicates that the hardware filter limit was reached and no further
entries can be added. You can disable filters on the default queue by setting the
enable_default_queue_filters parameter to 0, which disables traffic
switching between the partitions.
enable_live_grcdump
Use the enable_live_grcdump parameter to indicate which firmware dump
is collected for troubleshooting. Valid values are:
The default setting is appropriate for most situations. Do not change the default
value unless requested by the support team.
Driver Defaults
Defaults for the bnx2x VMware ESXi driver are as follows:
Speed: Autonegotiation with all speeds advertised
Flow Control: Autonegotiation with RX and TX advertised
MTU: 1500 (range 46–9600)
Rx Ring Size: 4078 (range 0–4078)
Tx Ring Size: 4078 (range (MAX_SKB_FRAGS+4) – 4078). MAX_SKB_FRAGS
varies on different kernels and different architectures. On a 2.6 kernel for x86,
MAX_SKB_FRAGS is 18.
Coalesce RX Microseconds: 25 (range 0–3000)
Coalesce TX Microseconds: 50 (range 0–12288)
MSI-X: Enabled (if supported by 2.6 kernel)
Value
Description
0x0 Disable live global register controller (GRC) dump
0x1 Enable parity/live GRC dump (default)
0x2 Enable transmit timeout GRC dump
0x4 Enable statistics timeout GRC dump