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Chapter 6: Installing the Linux Driver Software
82
tx_coalesce_ticks
Configures the number of 1 usec ticks before the NIC generates
transmit interrupt after transmitting a frame. This parameter works
in conjunction with the tx_max_coalesce_frames parameter.
Interrupt is generated when either of these thresholds is exceeded.
A value of 0 means this parameter is ignored and an interrupt is
generated when the tx_max_coalesce_frames threshold is
reached. The valid range is from 0 to 500 and the default is 400.
This parameter is not used and is adjusted automatically if
adaptive_coalesce is set to 1.
tx_max_coalesce_frames
Configures the number of transmitted frames before the NIC
generates transmit interrupt. The valid range is from 0 to 100 and
the default is 40. This parameter and tx_coalesce_ticks cannot
both have a value of 0. If both parameters have a value of 0, no
transmit completion interrupt is generated. This parameter should
always be set lower than tx_pkt_desc_cnt. This parameter is not
used and is adjusted automatically if adaptive_coalesce is set to 1.
stats_coalesce_ticks
Configures the number of 1 usec ticks between periodic statistics
block DMAs. The valid range is from 0 to 3600000000, and the
default is 1000000 (1 sec.). Set this parameter to a value of 0 to
disable statistics updates. This parameter is not used and is set to
default if rx_adaptive_coalesce is set to 1.
enable_wol
Enables or disables magic packet Wake-On-LAN when the system
is shutdown. Note that not all systems support Wake-On-LAN.
Choose from the following selections:
– 0 magic packet Wake-On-LAN disabled (default)
– 1 magic packet Wake-On-LAN enabled
enable_tso
Enables or disables TCP Segmentation Option (TSO) when using
kernels that support it. Choose from the following selections:
– TSO disabled (default)
– TSO enabled