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.\" $FreeBSD$ 32.\" 33.Dd August 17, 2017 34.Dt LIQUIDIO 4 35.Os 36.Sh NAME 37.Nm liquidio 38.Nd "Cavium 10Gb/25Gb Ethernet driver for the FreeBSD operating system" 39.Sh SYNOPSIS 40To compile this driver into the kernel, 41place the following line in your 42kernel configuration file: 43.Bd -ragged -offset indent 44.Cd "device lio" 45.Ed 46.Pp 47Alternatively, to load the driver as a 48module at boot time, place the following line in 49.Xr loader.conf 5 : 50.Bd -literal -offset indent 51if_lio_load="YES" 52.Ed 53.Sh DESCRIPTION 54The 55.Nm 56driver provides support for 23XX 10Gb/25Gb Ethernet adapters. 57The driver supports Jumbo Frames, Transmit/Receive checksum 58offload, TCP segmentation offload (TSO), Large Receive Offload (LRO), 59VLAN tag insertion/extraction, VLAN checksum offload, 60VLAN TSO, and Receive Side Steering (RSS) 61.Pp 62Support for Jumbo Frames is provided via the interface MTU setting. 63Selecting an MTU larger than 1500 bytes with the 64.Xr ifconfig 8 65utility configures the adapter to receive and transmit Jumbo Frames. 66The maximum MTU size for Jumbo Frames is 16000. 67.Pp 68For more information on configuring this device, see ifconfig(8). 69.Sh HARDWARE 70The 71.Nm 72driver supports the following cards: 73.Pp 74.Bl -bullet -compact 75.It 76LiquidIO II CN2350 210SV/225SV 77.It 78LiquidIO II CN2360 210SV/225SV 79.El 80.Sh LOADER TUNABLES 81Tunables can be set at the 82.Xr loader 8 83prompt before booting the kernel or stored in 84.Xr loader.conf 5 . 85.Bl -tag -width indent 86.It Va hw.lio.fw_type 87.Pp 88String that specifies type of firmware to be loaded. 89Default is "nic". Use "none" to load firmware from flash. 90.It Va hw.lio.num_queues_per_pf0 91.Pp 92Unsigned integers that specify number of queues per PF0. 93Valid range is 0 to 64. 94Use 0 to derive autoconfigures based on the number of 95cpus with a max of 8 96.It Va hw.lio.num_queues_per_pf1 97.Pp 98Unsigned integers that specify number of queues per PF1. 99Valid range is 0 to 64. 100Use 0 to derive autoconfigures based on the number of 101cpus with a max of 8 102.It Va hw.lio.console_bitmask 103.Pp 104Bitmask indicating which consoles have debug output 105redirected to syslog. 106.It Va hw.lio.rss 107.Pp 108To enable/disable driver RSS support 109.It Va hw.lio.hwlro 110.Pp 111To enable/disable hardware LRO 112.El 113.Sh SUPPORT 114For general information and support, 115go to the Cavium support website at: 116.Pa http://support.cavium.com . 117.Sh SEE ALSO 118.Xr altq 4 , 119.Xr arp 4 , 120.Xr netintro 4 , 121.Xr ng_ether 4 , 122.Xr vlan 4 , 123.Xr ifconfig 8 124.Sh HISTORY 125The 126.Nm 127device driver first appeared in 128.Fx 12.0 . 129.Sh AUTHORS 130The 131.Nm 132driver was written by 133.An Derek Chickles Aq Mt derek.chickles@cavium.com . 134