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1.\"
2.\" Copyright (c) 1998-2001 Semen Ustimenko (semenu@FreeBSD.org)
3.\"
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26.\" $FreeBSD: head/share/man/man4/tx.4 148220 2005-07-21 05:02:39Z trhodes $
27.\"
28.Dd July 16, 2005
29.Dt TX 4
30.Os
31.Sh NAME
32.Nm tx
33.Nd "SMC 83c17x Fast Ethernet device driver"
34.Sh SYNOPSIS
35To compile support for the
36.Nm
37driver into your kernel, place the following lines in your
38kernel configuration file:
39.Bd -ragged -offset indent
40.Cd "device miibus"
41.Cd "device tx"
42.Ed
43.Pp
44Alternatively, to load the
45.Nm
46driver at boot time, place the following line in
47.Xr loader.conf 5 :
48.Bd -literal -offset indent
49if_tx_load="YES"
50.Ed
51.Sh DESCRIPTION
52The
53.Nm
54driver provides support for the Ethernet adapters based on the
55SMC 83c17x (EPIC) chips.
56These are mostly SMC 9432 series cards.
57.Pp
58The
59.Nm
60driver supports the following media types (depending on card's capabilities):
61.Pp
62.Bl -tag -width ".Cm 10baseT/UTP"
63.It Cm autoselect
64Enable autonegotiation (default).
65.It Cm 100baseFX
66Set 100Mbps (Fast Ethernet) fiber optic operation.
67.It Cm 100baseTX
68Set 100Mbps (Fast Ethernet) twisted pair operation.
69.It Cm 10baseT/UTP
70Set 10Mbps on 10baseT port.
71.It Cm 10base2/BNC
72Set 10Mbps on 10base2 port.
73.El
74.Pp
75The
76.Nm
77driver supports the following media options:
78.Bl -tag -width ".Cm full-duplex"
79.It Cm full-duplex
80Set full-duplex operation.
81.El
82.Pp
83The
84.Nm
85driver supports oversized Ethernet packets (up to 1600 bytes).
86Refer to the
87.Xr ifconfig 8
88man page on setting the interface's MTU.
89.Pp
90The old
91.Dq Li "ifconfig tx0 linkN"
92method of configuration is not supported.
93.Ss "VLAN (IEEE 802.1Q) support"
94The
95.Nm
96driver supports the VLAN operation (using
97.Xr vlan 4
98interfaces) without decreasing the MTU on the
99.Xr vlan 4
100interfaces.
101.Sh DIAGNOSTICS
102.Bl -diag
103.It "tx%d: device timeout %d packets"
104The device stops responding.
105Device and driver reset follows this error.
106.It "tx%d: PCI fatal error occurred (%s)"
107One of following errors occurred: PCI Target Abort, PCI Master Abort, Data
108Parity Error or Address Parity Error.
109Device and driver reset follows this error.
110.It "tx%d: cannot allocate mbuf header/cluster"
111Cannot allocate memory for received packet.
112Packet thrown away.
113.It "tx%d: can't stop %s DMA"
114While resetting, the driver failed to stop the device correctly.
115.El
116.Sh SEE ALSO
117.Xr arp 4 ,
118.Xr miibus 4 ,
119.Xr netintro 4 ,
120.Xr ng_ether 4 ,
121.Xr ifconfig 8
122.Sh BUGS
123The auto-negotiation does not work very well.