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 May 8, 2019 28.Dt MLX5EN 4 29.Os 30.Sh NAME 31.Nm mlx5en 32.Nd "Mellanox ConnectX-4, ConnectX-4 LX and ConnectX-5 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 "options RATELIMIT" 40.Cd "device xz" 41.Cd "device mlxfw" 42.Cd "device firmware" 43.Cd "device mlx5" 44.Cd "device mlx5en" 45.Ed 46.Pp 47To load the driver as a module at run-time, 48run the following command as root: 49.Bd -literal -offset indent 50kldload mlx5en 51.Ed 52.Pp 53To load the driver as a 54module at boot time, place the following lines in 55.Xr loader.conf 5 : 56.Bd -literal -offset indent 57mlx5en_load="YES" 58.Ed 59.Sh DESCRIPTION 60The 61.Nm 62driver provides support for PCI Express Ethernet adapters based on 63ConnectX-4, ConnectX-4 LX and ConnectX-5. 64The driver supports Jumbo Frames, Transmit/Receive checksum offload, 65TCP segmentation offload (TSO), Large Receive Offload (LRO), 66HW Large Receive Offload (HW LRO), VLAN tag insertion/extraction, 67VLAN checksum offload, VLAN TSO, hardware rate limiting (TXRTLMT) 68and Receive Side Steering (RSS). 69.br 70The network interface is named mce. 71.br 72For further hardware information and questions related to hardware 73requirements, see 74.Pa http://www.mellanox.com/ . 75.Pp 76For more information on configuring this device, see 77.Xr ifconfig 8 . 78.Sh HARDWARE 79The 80.Nm 81driver supports 100Gb, 50Gb, 40Gb, 25Gb and 10Gb Ethernet adapters. 82ConnectX-5 supports:10/20/25/40/50/56/100Gb/s speeds. 83ConnectX-4 supports:10/20/25/40/50/56/100Gb/s speeds. 84ConnectX-4 LX supports:10/25/40/50Gb/s speeds (and reduced power consumption) : 85.Pp 86.Bl -bullet -compact 87.It 88Mellanox MCX455A-ECAT 89.It 90Mellanox MCX456A-ECAT 91.It 92Mellanox MCX415A-CCAT 93.It 94Mellanox MCX416A-CCAT 95.It 96Mellanox MCX455A-FCAT 97.It 98Mellanox MCX456A-FCAT 99.It 100Mellanox MCX415A-BCAT 101.It 102Mellanox MCX416A-BCAT 103.It 104Mellanox MCX4131A-GCAT 105.It 106Mellanox MCX4131A-BCAT 107.It 108Mellanox MCX4121A-ACAT 109.It 110Mellanox MCX4111A-ACAT 111.It 112Mellanox MCX4121A-XCAT 113.It 114Mellanox MCX4111A-XCAT 115.El 116.Sh SUPPORT 117For general information and support, 118go to the Mellanox support website at: 119.Pa http://www.mellanox.com/ . 120.Pp 121If an issue is identified with this driver with a supported adapter, 122email all the specific information related to the issue to 123.Aq Mt freebsd-drivers@mellanox.com . 124.Sh SEE ALSO 125.Xr ifconfig 8 126.Sh HISTORY 127The 128.Nm 129device driver first appeared in 130.Fx 11.0 . 131.Sh AUTHORS 132.An -nosplit 133The 134.Nm 135driver was written by 136.An Mellanox Technologies <freebsd-drivers@mellanox.com> . 137