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 $NetBSD: ex.4,v 1.19 2012/03/13 19:25:40 njoly Exp $

 Copyright (c) 1999 The NetBSD Foundation, Inc.
 All rights reserved.

.Dd October 30, 2007
.Dt EX 4
.Os
.Sh NAME
.Nm ex
.Nd driver for
.Tn 3Com
Fast EtherLink XL (3c900, 3c905, 3c980) and similar
.Tn PCI
bus and
.Tn cardbus
.Tn Ethernet
interfaces
.Sh SYNOPSIS
.Cd "ex* at cardbus? function ?"
.Cd "ex* at pci? dev ? function ?"
.Sh DESCRIPTION
.Tn 3Com
.Tn Ethernet
and
.Tn Fast Ethernet
cards supported by the
.Nm
driver include:

p
l -tag -width "3c900B-COMBO" -compact t 3c450-TX 10/100 Ethernet
t 3c555 MiniPCI 10/100 Ethernet
t 3c575-TX Ethernet
t 3c575B-TX Ethernet
t 3c575CT Ethernet
t 3c656 MiniPCI 10/100 Ethernet
t 3c656B MiniPCI 10/100 Ethernet
t 3c656C MiniPCI 10/100 Ethernet
t 3c900-TPO Ethernet
t 3c900-COMBO Ethernet
t 3c900B-TPC Ethernet
t 3c900B-TPO Ethernet
t 3c900B-COMBO Ethernet
t 3c905-T4 10/100 Ethernet
t 3c905-TX 10/100 Ethernet
t 3c905B-COMBO 10/100 Ethernet
t 3c905B-FX 10/100 Ethernet
t 3c905B-T4 10/100 Ethernet
t 3c905B-TX 10/100 Ethernet
t 3c905CX-TX 10/100 Ethernet
t 3c980 Server Adapter 10/100 Ethernet
t 3c980C-TXM 10/100 Ethernet
t 3cSOHO100-TX 10/100 Ethernet
.El

p
All versions of the
.Tn EtherLink XL

q except the older 3c900 and 3c905
support IPv4/TCP/UDP checksumming in hardware.
The
.Nm
driver supports this feature of the chip.
See
.Xr ifconfig 8
for information on how to enable this feature.
.Sh MEDIA SELECTION
Some of these network interfaces support the Media Independent Interface

q Tn MII ,
a bus which can have at least one arbitrary Physical interface

q Tn PHY
chip on it.
.Nx
supports
.Tn MII
and has separate drivers for many different
.Tn PHY
chips, including
.Xr ukphy 4 ,
a generic
.Tn PHY
driver that can support many
.Tn PHY
chips that
.Nx
does not yet have a specific driver for.

p
Support for the
.Tn PHY
found on a given
.Tn NIC
must be configured into a
.Nx
kernel
.Xr config 1
for this driver to work properly in those cases.

p
See
.Xr ifmedia 4 ,
and
.Xr mii 4 .
.Sh DIAGNOSTICS
l -diag t "%s: adapter failure (%x)" t "%s: can't allocate download descriptors, error = %d" t "%s: can't allocate or map rx buffers" t "%s: can't allocate upload descriptors, error = %d" t "%s: can't create download desc. DMA map, error = %d" t "%s: can't create rx DMA map %d, error = %d" t "%s: can't create tx DMA map %d, error = %d" t "%s: can't create upload desc. DMA map, error = %d" t "%s: can't load download desc. DMA map, error = %d" t "%s: can't load mbuf chain, error = %d" t "%s: can't load rx buffer, error = %d" t "%s: can't load upload desc. DMA map, error = %d" t "%s: can't map download descriptors, error = %d" t "%s: can't map upload descriptors, error = %d" t "%s: fifo underrun (%x) @%d" t "%s: jabber (%x)" t "%s: receive stalled" t "%s: too many segments, " t "%s: uplistptr was 0" host too slow to serve incoming packets
.El
.Sh SEE ALSO
.Xr cardbus 4 ,
.Xr exphy 4 ,
.Xr ifmedia 4 ,
.Xr intro 4 ,
.Xr mii 4 ,
.Xr pci 4 ,
.Xr ifconfig 8