1.\" BSD LICENSE 2.\" 3.\" Copyright(c) 2017 Cavium, Inc.. All rights reserved. 4.\" All rights reserved. 5.\" 6.\" Redistribution and use in source and binary forms, with or without 7.\" modification, are permitted provided that the following conditions 8.\" are met: 9.\" 10.\" * Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" * Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in 14.\" the documentation and/or other materials provided with the 15.\" distribution. 16.\" * Neither the name of Cavium, Inc. nor the names of its 17.\" contributors may be used to endorse or promote products derived 18.\" from this software without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21.\" "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22.\" LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 23.\" A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 24.\" OWNER(S) OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 25.\" SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 26.\" LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 27.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 28.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 29.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 30.\" OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 31.\" 32.Dd August 17, 2017 33.Dt LIQUIDIO 4 34.Os 35.Sh NAME 36.Nm liquidio 37.Nd "Cavium 10Gb/25Gb Ethernet driver for the FreeBSD operating system" 38.Sh SYNOPSIS 39To compile this driver into the kernel, 40place the following line in your 41kernel configuration file: 42.Bd -ragged -offset indent 43.Cd "device lio" 44.Ed 45.Pp 46Alternatively, to load the driver as a 47module at boot time, place the following line in 48.Xr loader.conf 5 : 49.Bd -literal -offset indent 50if_lio_load="YES" 51.Ed 52.Sh DESCRIPTION 53The 54.Nm 55driver provides support for 23XX 10Gb/25Gb Ethernet adapters. 56The driver supports Jumbo Frames, Transmit/Receive checksum 57offload, TCP segmentation offload (TSO), Large Receive Offload (LRO), 58VLAN tag insertion/extraction, VLAN checksum offload, 59VLAN TSO, and Receive Side Steering (RSS) 60.Pp 61Support for Jumbo Frames is provided via the interface MTU setting. 62Selecting an MTU larger than 1500 bytes with the 63.Xr ifconfig 8 64utility configures the adapter to receive and transmit Jumbo Frames. 65The maximum MTU size for Jumbo Frames is 16000. 66.Pp 67For more information on configuring this device, see ifconfig(8). 68.Sh HARDWARE 69The 70.Nm 71driver supports the following cards: 72.Pp 73.Bl -bullet -compact 74.It 75LiquidIO II CN2350 210SV/225SV 76.It 77LiquidIO II CN2360 210SV/225SV 78.El 79.Sh LOADER TUNABLES 80Tunables can be set at the 81.Xr loader 8 82prompt before booting the kernel or stored in 83.Xr loader.conf 5 . 84.Bl -tag -width indent 85.It Va hw.lio.fw_type 86.Pp 87String that specifies type of firmware to be loaded. 88Default is "nic". Use "none" to load firmware from flash. 89.It Va hw.lio.num_queues_per_pf0 90.Pp 91Unsigned integers that specify number of queues per PF0. 92Valid range is 0 to 64. 93Use 0 to derive autoconfigures based on the number of 94cpus with a max of 8 95.It Va hw.lio.num_queues_per_pf1 96.Pp 97Unsigned integers that specify number of queues per PF1. 98Valid range is 0 to 64. 99Use 0 to derive autoconfigures based on the number of 100cpus with a max of 8 101.It Va hw.lio.console_bitmask 102.Pp 103Bitmask indicating which consoles have debug output 104redirected to syslog. 105.It Va hw.lio.rss 106.Pp 107To enable/disable driver RSS support 108.It Va hw.lio.hwlro 109.Pp 110To enable/disable hardware LRO 111.El 112.Sh SUPPORT 113For general information and support, 114go to the Cavium support website at: 115.Pa http://support.cavium.com . 116.Sh SEE ALSO 117.Xr altq 4 , 118.Xr arp 4 , 119.Xr netintro 4 , 120.Xr ng_ether 4 , 121.Xr vlan 4 , 122.Xr ifconfig 8 123.Sh HISTORY 124The 125.Nm 126device driver first appeared in 127.Fx 12.0 . 128.Sh AUTHORS 129The 130.Nm 131driver was written by 132.An Derek Chickles Aq Mt derek.chickles@cavium.com . 133