amd-bug-workaround
The driver will automatically modify the PCI-X
settings (pci-split-transaction-cnt and
pci-burstsize) if it finds that the device is running
on an AMD-8131 HyperTransport Tunnel chipset and
running at 133Mhz.
When enabled, the workaround will set the pci-
split-transaction-cnt to 2 transactions and
the pci-burstsize to 1024 (1k) bytes.
Setting amd-bug-workaround to 0 will disable this
feature and allow the system to come up with the
default (system) settings. After modifying this value, it
is important to reload the driver and config file.
enable-latency-timer
The driver modifies the PCI Latency Timer on the
PCI-X bus. This provides a large performance
increase on the PCI-X bus, especially for 10Gb
Ethernet adapters. This setting will affect all devices
on the same bus segment. By default, the latency
timer is set to 0xF8. This parameter can be disabled
by setting enable-latency-timer to 0.
enable-latency-timer=0;
accept-jumbo
The 10Gb Ethernet adapter will support Jumbo
frames up to 9600 bytes (9582 data + 18 header).
Jumbo frames are only supported for Solaris 10
update 1 and later.
Use the following parameter to enable jumbo frame
support.
accept-jumbo = 1;
The default maximum MTU is 9198 bytes. The
maximum MTU size may be adjusted by changing
the value of the maximum-mtu parameter.
maximum-mtu = <value>;
MTU sizes may then be adjusted to a value smaller
than the maximum-mtu size by using the ifconfig
utility. Refer to the ifconfig(1M) manpage for
additional information.
enable-checksum-offload
The N210 10Gb Ethernet adapter performs hardware
based checksum. The N110 does not support the
hardware checksum feature and will not use it
regardless of the parameter setting.
Hardware checksum is enabled by default. Use the
following parameter to disable this feature.
enable-checksum-offload = 0;
Chelsio N210/N110 Installation and User Guide for Solaris Release 10, April 2005. 7
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