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EX(4) NetBSD Kernel Interfaces Manual EX(4)
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Maintained for NetBSD
by Kimmo Suominen.
Based on man-cgi by Panagiotis Christias.
ex -- driver for 3Com Fast EtherLink XL (3c900, 3c905, 3c980) and similar
PCI bus and cardbus Ethernet interfaces
ex* at cardbus? function ?
ex* at pci? dev ? function ?
3Com Ethernet and Fast Ethernet cards supported by the ex driver include:
3c450-TX 10/100 Ethernet
3c555 MiniPCI 10/100 Ethernet
3c656 MiniPCI 10/100 Ethernet
3c656B MiniPCI 10/100 Ethernet
3c656C MiniPCI 10/100 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) sup-
port IPv4/TCP/UDP checksumming in hardware. The ex driver supports this
feature of the chip. See ifconfig(8) for information on how to enable
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
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).
%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
cardbus(4), exphy(4), ifmedia(4), intro(4), mii(4), pci(4), ifconfig(8)
NetBSD 9.3 October 30, 2007 NetBSD 9.3