EX(4)

NAME
ex - driver for 3Com Fast EtherLink XL (3c900, 3c905, 3c980) and similar PCI bus and cardbus Ethernet interfaces

SYNOPSIS
ex* at cardbus? function ?
ex* at pci? dev ? function ?

DESCRIPTION
3Com Ethernet and Fast Ethernet cards supported by the ex driver include:

3c450-TX
    10/100 Ethernet
3c555
    MiniPCI 10/100 Ethernet
3c575-TX
    Ethernet
3c575B-TX
    Ethernet
3c575CT
    Ethernet
3c656
    MiniPCI 10/100 Ethernet
3c656B
    MiniPCI 10/100 Ethernet
3c656C
    MiniPCI 10/100 Ethernet
3c900-TPO
    Ethernet
3c900-COMBO
    Ethernet
3c900B-TPC
    Ethernet
3c900B-TPO
    Ethernet
3c900B-COMBO
    Ethernet
3c905-T4
    10/100 Ethernet
3c905-TX
    10/100 Ethernet
3c905B-COMBO
    10/100 Ethernet
3c905B-FX
    10/100 Ethernet
3c905B-T4
    10/100 Ethernet
3c905B-TX
    10/100 Ethernet
3c905CX-TX
    10/100 Ethernet
3c980
    Server Adapter 10/100 Ethernet
3c980C-TXM
    10/100 Ethernet
3cSOHO100-TX
    10/100 Ethernet

All versions of the EtherLink XL (except the older 3c900 and 3c905) support IPv4/TCP/UDP checksumming in hardware. The ex driver supports this feature of the chip. See ifconfig(8) for information on how to enable this feature.

MEDIA SELECTION
Some of these network interfaces support the Media Independent Interface (MII), a bus which can have at least one arbitrary Physical interface (PHY) chip on it. NetBSD supports MII and has separate drivers for many different PHY chips, including ukphy(4), a generic PHY driver that can support many PHY chips that NetBSD does not yet have a specific driver for.

Support for the PHY found on a given NIC must be configured into a NetBSD kernel config(1) for this driver to work properly in those cases.

See ifmedia(4), and mii(4).

DIAGNOSTICS

%s: adapter failure (%x)

%s: can't allocate download descriptors, error = %d

%s: can't allocate or map rx buffers

%s: can't allocate upload descriptors, error = %d

%s: can't create download desc. DMA map, error = %d

%s: can't create rx DMA map %d, error = %d

%s: can't create tx DMA map %d, error = %d

%s: can't create upload desc. DMA map, error = %d

%s: can't load download desc. DMA map, error = %d

%s: can't load mbuf chain, error = %d

%s: can't load rx buffer, error = %d

%s: can't load upload desc. DMA map, error = %d

%s: can't map download descriptors, error = %d

%s: can't map upload descriptors, error = %d

%s: fifo underrun (%x) @%d

%s: jabber (%x)

%s: receive stalled

%s: too many segments,

%s: uplistptr was 0 host too slow to serve incoming packets

SEE ALSO
cardbus(4), exphy(4), ifmedia(4), intro(4), mii(4), pci(4), ifconfig(8)

http://www.3com.com/