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32 .\" $FreeBSD: src/share/man/man4/em.4,v 1.2.2.6 2003/02/01 01:21:31 pdeuskar Exp $
33 .\" $DragonFly: src/share/man/man4/em.4,v 1.2 2003/06/17 04:36:59 dillon Exp $
40 .Nd "Intel(R) PRO/1000 gigabit Ethernet driver for the FreeBSD operating system"
46 driver provides support for PCI gigabit Ethernet adapters based on
47 the Intel 82540, 82542, 82543, 82544 and 82546 Ethernet controller chips.
48 The driver supports Transmit/Receive checksum offload
49 and Jumbo Frames only on 82540, 82543, 82544 and 82546-based adapters.
50 For a list of supported adapters, see the
52 included with the driver.
54 For questions related to hardware requirements,
55 refer to the documentation supplied with your Intel PRO/1000 adapter.
56 All hardware requirements listed apply to use with
59 Support for Jumbo Frames is provided via the interface MTU setting.
60 Selecting an MTU larger than 1500 bytes with the
62 utility configures the adapter to receive and transmit Jumbo Frames.
63 The maximum MTU size for Jumbo Frames is 16114.
65 This driver version supports VLANs.
66 For information on enabling VLANs, see the
70 driver supports the following media types:
71 .Bl -tag -width ".Cm 10baseT/UTP"
73 Enables auto-negotiation for speed and duplex.
75 Sets 10Mbps operation.
82 Sets 100Mbps operation.
89 Sets 1000Mbps operation.
92 mode is supported at this speed.
94 Sets 1000Mbps operation.
97 mode is supported at this speed.
102 driver supports the following media options:
103 .Bl -tag -width ".Cm full-duplex"
105 Forces full-duplex operation
107 Forces half-duplex operation.
116 is not specified, the driver defaults to
119 For more information on configuring this device, see
123 .It "em%d: Unable to allocate bus resource: memory"
124 A fatal initialization error has occurred.
125 .It "em%d: Unable to allocate bus resource: interrupt"
126 A fatal initialization error has occurred.
127 .It "em%d: watchdog timeout -- resetting"
128 The device has stopped responding to the network, or there is a problem with
129 the network connection (cable).
132 For additional information regarding building and installation,
135 included with the driver.
136 For general information and support,
137 go to the Intel support website at:
138 .Pa http://support.intel.com .
140 If an issue is identified with the released source code on the supported kernel
141 with a supported adapter, email the specific information related to the
143 .Aq freebsdnic@mailbox.intel.com .
154 device driver first appeared in
159 driver was written by
160 .An Intel Corporation Aq freebsdnic@mailbox.intel.com .