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Diffstat (limited to 'Documentation/networking/e100.rst')
| -rw-r--r-- | Documentation/networking/e100.rst | 27 |
1 files changed, 17 insertions, 10 deletions
diff --git a/Documentation/networking/e100.rst b/Documentation/networking/e100.rst index 9708f5fa76de..f81111eba9c5 100644 --- a/Documentation/networking/e100.rst +++ b/Documentation/networking/e100.rst @@ -47,41 +47,45 @@ Driver Configuration Parameters The default value for each parameter is generally the recommended setting, unless otherwise noted. -Rx Descriptors: Number of receive descriptors. A receive descriptor is a data +Rx Descriptors: + Number of receive descriptors. A receive descriptor is a data structure that describes a receive buffer and its attributes to the network controller. The data in the descriptor is used by the controller to write data from the controller to host memory. In the 3.x.x driver the valid range for this parameter is 64-256. The default value is 256. This parameter can be changed using the command:: - ethtool -G eth? rx n + ethtool -G eth? rx n Where n is the number of desired Rx descriptors. -Tx Descriptors: Number of transmit descriptors. A transmit descriptor is a data +Tx Descriptors: + Number of transmit descriptors. A transmit descriptor is a data structure that describes a transmit buffer and its attributes to the network controller. The data in the descriptor is used by the controller to read data from the host memory to the controller. In the 3.x.x driver the valid range for this parameter is 64-256. The default value is 128. This parameter can be changed using the command:: - ethtool -G eth? tx n + ethtool -G eth? tx n Where n is the number of desired Tx descriptors. -Speed/Duplex: The driver auto-negotiates the link speed and duplex settings by +Speed/Duplex: + The driver auto-negotiates the link speed and duplex settings by default. The ethtool utility can be used as follows to force speed/duplex.:: - ethtool -s eth? autoneg off speed {10|100} duplex {full|half} + ethtool -s eth? autoneg off speed {10|100} duplex {full|half} NOTE: setting the speed/duplex to incorrect values will cause the link to fail. -Event Log Message Level: The driver uses the message level flag to log events +Event Log Message Level: + The driver uses the message level flag to log events to syslog. The message level can be set at driver load time. It can also be set using the command:: - ethtool -s eth? msglvl n + ethtool -s eth? msglvl n Additional Configurations @@ -92,7 +96,7 @@ Configuring the Driver on Different Distributions Configuring a network driver to load properly when the system is started is distribution dependent. Typically, the configuration process involves -adding an alias line to /etc/modprobe.d/*.conf as well as editing other +adding an alias line to `/etc/modprobe.d/*.conf` as well as editing other system startup scripts and/or configuration files. Many popular Linux distributions ship with tools to make these changes for you. To learn the proper way to configure a network device for your system, refer to @@ -160,7 +164,10 @@ This results in unbalanced receive traffic. If you have multiple interfaces in a server, either turn on ARP filtering by -(1) entering:: echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter +(1) entering:: + + echo 1 > /proc/sys/net/ipv4/conf/all/arp_filter + (this only works if your kernel's version is higher than 2.4.5), or (2) installing the interfaces in separate broadcast domains (either |