1.\" Copyright (c) 2019 The FreeBSD Foundation. 2.\" 3.\" Redistribution and use in source and binary forms, with or without 4.\" modification, are permitted provided that the following conditions 5.\" are met: 6.\" 1. Redistributions of source code must retain the above copyright 7.\" notice, this list of conditions and the following disclaimer. 8.\" 2. Redistributions in binary form must reproduce the above copyright 9.\" notice, this list of conditions and the following disclaimer in the 10.\" documentation and/or other materials provided with the distribution. 11.\" 12.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 13.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 14.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 15.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 16.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 17.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 18.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 19.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 20.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 21.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 22.\" SUCH DAMAGE. 23.\" 24.\" $FreeBSD$ 25.\" 26.Dd May 2, 2019 27.Dt MGB 4 28.Os 29.Sh NAME 30.Nm mgb 31.Nd "Microchip LAN743x PCIe Gigabit Ethernet driver" 32.Sh SYNOPSIS 33To load the driver as a module at boot time, place the following line in 34.Xr loader.conf 5 : 35.Bd -literal -offset indent 36if_mgb_load="YES" 37.Ed 38.Sh DESCRIPTION 39The 40.Nm 41driver is experimental, and is not yet connected to the build. 42.Pp 43The 44.Nm 45device driver provides support for PCIe Gigabit Ethernet adapters based on 46Microchip's LAN7430 and LAN7431. 47.Pp 48For more information on configuring this device, see 49.Xr ifconfig 8 . 50.Sh HARDWARE 51The 52.Nm 53driver supports: 54.Pp 55.Bl -bullet -compact 56.It 57Microchip LAN7430 PCIe Gigabit Ethernet controller with PHY 58.It 59Microchip LAN7431 PCIe Gigabit Ethernet controller with RGMII interface 60.El 61.Sh SEE ALSO 62.Xr arp 4 , 63.Xr miibus 4 , 64.Xr ifconfig 8 65.Sh CAVEATS 66The driver does not yet implement support for many hardware features, 67including: 68.Bl -bullet -compact 69.It 70Multiple RX queue support 71.It 72RX and TX checksum offload 73.It 74Hardware VLAN tagging or untagging 75.It 76Multicast receive packet filtering 77.It 78Wake on LAN (WoL) 79.It 80LSO 81.It 82RSS 83.El 84.Pp 85LAN7431 support is completely untested. 86