1.\" Copyright (c) 2001 Wind River Systems 2.\" Copyright (c) 1997, 1998, 1999, 2000, 2001 3.\" Bill Paul <wpaul@windriver.com>. All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 3. All advertising materials mentioning features or use of this software 14.\" must display the following acknowledgement: 15.\" This product includes software developed by Bill Paul. 16.\" 4. Neither the name of the author nor the names of any co-contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 24.\" BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30.\" THE POSSIBILITY OF SUCH DAMAGE. 31.\" 32.Dd August 18, 2017 33.Dt BGE 4 34.Os 35.Sh NAME 36.Nm bge 37.Nd "Broadcom BCM57xx/BCM590x Gigabit/Fast Ethernet driver" 38.Sh SYNOPSIS 39To compile this driver into the kernel, 40place the following lines in your 41kernel configuration file: 42.Bd -ragged -offset indent 43.Cd "device miibus" 44.Cd "device bge" 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_bge_load="YES" 52.Ed 53.Sh DESCRIPTION 54The 55.Nm 56driver provides support for various NICs based on the Broadcom BCM570x, 57571x, 572x, 575x, 576x, 578x, 5776x and 5778x Gigabit Ethernet controller 58chips and the 590x and 5779x Fast Ethernet controller chips. 59.Pp 60All of these NICs are capable of 10, 100 and 1000Mbps speeds over CAT5 61copper cable, except for the SysKonnect SK-9D41 which supports only 621000Mbps over multimode fiber. 63The BCM570x builds upon the technology of the Alteon Tigon II. 64It has two R4000 CPU cores and is PCI v2.2 and PCI-X v1.0 compliant. 65It supports IP, TCP 66and UDP checksum offload for both receive and transmit, 67multiple RX and TX DMA rings for QoS applications, rules-based 68receive filtering, and VLAN tag stripping/insertion as well as 69a 256-bit multicast hash filter. 70Additional features may be 71provided via value-add firmware updates. 72The BCM570x supports TBI (ten bit interface) and GMII 73transceivers, which means it can be used with either copper or 1000baseX 74fiber applications. 75Note however the device only supports a single 76speed in TBI mode. 77.Pp 78Most BCM5700-based cards also use the Broadcom BCM5401 or BCM5411 10/100/1000 79copper gigabit transceivers, 80which support autonegotiation of 10, 100 and 1000Mbps modes in 81full or half duplex. 82.Pp 83The BCM5700, BCM5701, BCM5702, BCM5703, BCM5704, BCM5714, BCM5717, BCM5719, 84BCM5720, BCM5780 and BCM57765 also support jumbo frames, which can be 85configured via the interface MTU setting. 86Selecting an MTU larger than 1500 bytes with the 87.Xr ifconfig 8 88utility configures the adapter to receive and transmit jumbo frames. 89Using jumbo frames can greatly improve performance for certain tasks, 90such as file transfers and data streaming. 91.Pp 92The 93.Nm 94driver supports the following media types: 95.Bl -tag -width ".Cm 10baseT/UTP" 96.It Cm autoselect 97Enable autoselection of the media type and options. 98The user can manually override 99the autoselected mode by adding media options to 100.Xr rc.conf 5 . 101.It Cm 10baseT/UTP 102Set 10Mbps operation. 103The 104.Xr ifconfig 8 105.Ic mediaopt 106option can also be used to select either 107.Cm full-duplex 108or 109.Cm half-duplex 110modes. 111.It Cm 100baseTX 112Set 100Mbps (Fast Ethernet) operation. 113The 114.Xr ifconfig 8 115.Ic mediaopt 116option can also be used to select either 117.Cm full-duplex 118or 119.Cm half-duplex 120modes. 121.It Cm 1000baseTX 122Set 1000baseTX operation over twisted pair. 123Only 124.Cm full-duplex 125mode is supported. 126.It Cm 1000baseSX 127Set 1000Mbps (Gigabit Ethernet) operation. 128Both 129.Cm full-duplex 130and 131.Cm half-duplex 132modes are supported. 133.El 134.Pp 135The 136.Nm 137driver supports the following media options: 138.Bl -tag -width ".Cm full-duplex" 139.It Cm full-duplex 140Force full duplex operation. 141.It Cm half-duplex 142Force half duplex operation. 143.El 144.Pp 145For more information on configuring this device, see 146.Xr ifconfig 8 . 147.Sh HARDWARE 148The 149.Nm 150driver provides support for various NICs based on the Broadcom BCM570x 151family of Gigabit Ethernet controller chips, including the 152following: 153.Pp 154.Bl -bullet -compact 155.It 1563Com 3c996-SX (1000baseSX) 157.It 1583Com 3c996-T (10/100/1000baseTX) 159.It 160Apple Thunderbolt Display (10/100/1000baseTX) 161.It 162Apple Thunderbolt to Gigabit Ethernet Adapter (10/100/1000baseTX) 163.It 164Dell PowerEdge 1750 integrated BCM5704C NIC (10/100/1000baseTX) 165.It 166Dell PowerEdge 2550 integrated BCM5700 NIC (10/100/1000baseTX) 167.It 168Dell PowerEdge 2650 integrated BCM5703 NIC (10/100/1000baseTX) 169.It 170Dell PowerEdge R200 integrated BCM5750 NIC (10/100/1000baseTX) 171.It 172Dell PowerEdge R300 integrated BCM5722 NIC (10/100/1000baseTX) 173.It 174IBM x235 server integrated BCM5703x NIC (10/100/1000baseTX) 175.It 176HP Compaq dc7600 integrated BCM5752 NIC (10/100/1000baseTX) 177.It 178HP ProLiant NC7760 embedded Gigabit NIC (10/100/1000baseTX) 179.It 180HP ProLiant NC7770 PCI-X Gigabit NIC (10/100/1000baseTX) 181.It 182HP ProLiant NC7771 PCI-X Gigabit NIC (10/100/1000baseTX) 183.It 184HP ProLiant NC7781 embedded PCI-X Gigabit NIC (10/100/1000baseTX) 185.It 186Netgear GA302T (10/100/1000baseTX) 187.It 188SysKonnect SK-9D21 (10/100/1000baseTX) 189.It 190SysKonnect SK-9D41 (1000baseSX) 191.El 192.Sh LOADER TUNABLES 193The following tunables can be set at the 194.Xr loader 8 195prompt before booting the kernel, or stored in 196.Xr loader.conf 5 . 197.Bl -tag -width indent 198.It Va hw.bge.allow_asf 199Allow the ASF feature for cooperating with IPMI. 200Can cause system lockup problems on a small number of systems. 201Enabled by default. 202.It Va dev.bge.%d.msi 203Non-zero value enables MSI support on the Ethernet hardware. 204The default value is 1. 205.El 206.Sh SYSCTL VARIABLES 207The following variables are available as both 208.Xr sysctl 8 209variables and 210.Xr loader 8 211tunables: 212.Bl -tag -width indent 213.It Va dev.bge.%d.forced_collapse 214Allow collapsing multiple transmit buffers into a single buffer 215to increase transmit performance with the cost of CPU cycles. 216The default value is 0 to disable transmit buffer collapsing. 217.It Va dev.bge.%d.forced_udpcsum 218Enable UDP transmit checksum offloading even if controller can generate 219UDP datagrams with checksum value 0. 220UDP datagrams with checksum value 0 can confuse receiver host as it means 221sender did not compute UDP checksum. 222The default value is 0 which disables UDP transmit checksum offloading. 223The interface need to be brought down and up again before a change takes 224effect. 225.El 226.Sh DIAGNOSTICS 227.Bl -diag 228.It "bge%d: couldn't map memory" 229A fatal initialization error has occurred. 230.It "bge%d: couldn't map ports" 231A fatal initialization error has occurred. 232.It "bge%d: couldn't map interrupt" 233A fatal initialization error has occurred. 234.It "bge%d: no memory for softc struct!" 235The driver failed to allocate memory for per-device instance information 236during initialization. 237.It "bge%d: failed to enable memory mapping!" 238The driver failed to initialize PCI shared memory mapping. 239This might 240happen if the card is not in a bus-master slot. 241.It "bge%d: firmware handshake timed out, found 0xffffffff" 242The device was physically disconnected from the system, or there is a problem with 243the device causing it to stop responding to the host it is attached to. 244.It "bge%d: no memory for jumbo buffers!" 245The driver failed to allocate memory for jumbo frames during 246initialization. 247.It "bge%d: watchdog timeout" 248The device has stopped responding to the network, or there is a problem with 249the network connection (cable). 250.El 251.Sh SEE ALSO 252.Xr altq 4 , 253.Xr arp 4 , 254.Xr miibus 4 , 255.Xr netintro 4 , 256.Xr ng_ether 4 , 257.Xr polling 4 , 258.Xr vlan 4 , 259.Xr ifconfig 8 260.Sh HISTORY 261The 262.Nm 263device driver first appeared in 264.Fx 4.5 . 265.Sh AUTHORS 266The 267.Nm 268driver was written by 269.An Bill Paul Aq Mt wpaul@windriver.com . 270.Sh BUGS 271Hotplug is not currently supported in 272.Fx , 273hence, Thunderbolt interfaces need to be connected prior to system power up on 274Apple systems in order for the interface to be detected. 275Also, due to the lack of hotplug support, Thunderbolt-based interfaces must not be removed 276while the system is up as the kernel is currently unable to cope with a 277.Nm 278interface disappearing. 279