1.\" Copyright (c) 2015 Mellanox Technologies 2.\" All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 13.\" THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS `AS IS' AND 14.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 15.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 16.\" ARE DISCLAIMED. IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE 17.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 18.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 19.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 20.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 21.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23.\" SUCH DAMAGE. 24.\" 25.\" $FreeBSD$ 26.\" 27.Dd December 3, 2015 28.Dt MLX5EN 4 29.Os 30.Sh NAME 31.Nm mlx5en 32.Nd "Mellanox ConnectX-4 and ConnectX-4 LX based 100Gb, 50Gb, 40Gb, 25Gb and 10Gb Ethernet adapter driver" 33.Sh SYNOPSIS 34To compile this driver into the kernel, 35place the following lines in your 36kernel configuration file: 37.Bd -ragged -offset indent 38.Cd "options COMPAT_LINUXKPI" 39.Cd "device mlx5" 40.Cd "device mlx5en" 41.Ed 42.Pp 43To load the driver as a module at run-time, 44run the following command as root: 45.Bd -literal -offset indent 46kldload mlx5en 47.Ed 48.Pp 49To load the driver as a 50module at boot time, place the following lines in 51.Xr loader.conf 5 : 52.Bd -literal -offset indent 53mlx5en_load="YES" 54.Ed 55.Sh DESCRIPTION 56The 57.Nm 58driver provides support for PCI Express Ethernet adapters based on 59ConnectX-4 and ConnectX-4 LX. 60The driver supports Jumbo Frames, Transmit/Receive checksum offload, 61TCP segmentation offload (TSO), Large Receive Offload (LRO), 62HW Large Receive Offload (HW LRO), VLAN tag insertion/extraction, 63VLAN checksum offload, VLAN TSO, and Receive Side Steering (RSS). 64.br 65The network interface is named mce. 66.br 67For further hardware information and questions related to hardware 68requirements, see 69.Pa http://www.mellanox.com/ . 70.Pp 71For more information on configuring this device, see 72.Xr ifconfig 8 . 73.Sh HARDWARE 74The 75.Nm 76driver supports 100Gb, 50Gb, 40Gb, 25Gb and 10Gb Ethernet adapters. 77ConnectX-4 supports:10/20/25/40/50/56/100Gb/s speeds. 78ConnectX-4 LX supports:10/25/40/50Gb/s speeds (and reduced power consumption) : 79.Pp 80.Bl -bullet -compact 81.It 82Mellanox MCX455A-ECAT 83.It 84Mellanox MCX456A-ECAT 85.It 86Mellanox MCX415A-CCAT 87.It 88Mellanox MCX416A-CCAT 89.It 90Mellanox MCX455A-FCAT 91.It 92Mellanox MCX456A-FCAT 93.It 94Mellanox MCX415A-BCAT 95.It 96Mellanox MCX416A-BCAT 97.It 98Mellanox MCX4131A-GCAT 99.It 100Mellanox MCX4131A-BCAT 101.It 102Mellanox MCX4121A-ACAT 103.It 104Mellanox MCX4111A-ACAT 105.It 106Mellanox MCX4121A-XCAT 107.It 108Mellanox MCX4111A-XCAT 109.El 110.Sh SUPPORT 111For general information and support, 112go to the Mellanox support website at: 113.Pa http://www.mellanox.com/ . 114.Pp 115If an issue is identified with this driver with a supported adapter, 116email all the specific information related to the issue to 117.Aq Mt freebsd-drivers@mellanox.com . 118.Sh SEE ALSO 119.Xr ifconfig 8 120.Sh HISTORY 121The 122.Nm 123device driver first appeared in 124.Fx 11.0 . 125.Sh AUTHORS 126.An -nosplit 127The 128.Nm 129driver was written by 130.An Mellanox Technologies <freebsd-drivers@mellanox.com> . 131