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NAME

     liquidio — Cavium 10Gb/25Gb Ethernet driver for the FreeBSD operating system

SYNOPSIS

     To compile this driver into the kernel, place the following line in your kernel
     configuration file:

           device lio

     Alternatively, to load the driver as a module at boot time, place the following line in
     loader.conf(5):

           if_lio_load="YES"

DESCRIPTION

     The liquidio driver provides support for 23XX 10Gb/25Gb Ethernet adapters.  The driver
     supports Jumbo Frames, Transmit/Receive checksum offload, TCP segmentation offload (TSO),
     Large Receive Offload (LRO), VLAN tag insertion/extraction, VLAN checksum offload, VLAN TSO,
     and Receive Side Steering (RSS)

     Support for Jumbo Frames is provided via the interface MTU setting.  Selecting an MTU larger
     than 1500 bytes with the ifconfig(8) utility configures the adapter to receive and transmit
     Jumbo Frames.  The maximum MTU size for Jumbo Frames is 16000.

     For more information on configuring this device, see ifconfig(8).

HARDWARE

     The liquidio driver supports the following cards:

     ·   LiquidIO II CN2350 210SV/225SV
     ·   LiquidIO II CN2360 210SV/225SV

LOADER TUBABLES

     Tunables can be set at the loader(8) prompt before booting the kernel or stored in
     loader.conf(5).

     hw.lio.fw_type

             String that specifies type of firmware to be loaded.  Default is "nic". Use "none"
             to load firmware from flash.

     hw.lio.num_queues_per_pf0

             Unsigned integers that specify number of queues per PF0.  Valid range is 0 to 64.
             Use 0 to derive autoconfigures based on the number of cpus with a max of 8

     hw.lio.num_queues_per_pf1

             Unsigned integers that specify number of queues per PF1.  Valid range is 0 to 64.
             Use 0 to derive autoconfigures based on the number of cpus with a max of 8

     hw.lio.console_bitmask

             Bitmask indicating which consoles have debug output redirected to syslog.

     hw.lio.rss

             To enable/disable driver RSS support

     hw.lio.hwlro

             To enable/disable hardware LRO

SUPPORT

     For general information and support, go to the Cavium support website at:
     http://support.cavium.com.

SEE ALSO

     altq(4), arp(4), netintro(4), ng_ether(4), vlan(4), ifconfig(8)

HISTORY

     The liquidio device driver first appeared in FreeBSD 12.0.

AUTHORS

     The liquidio driver was written by Derek Chickles <derek.chickles@cavium.com>.