FXP(4)

NAME
fxp - device driver for Intel i82557 and i82558 Ethernet interfaces

SYNOPSIS
fxp* at pci? dev ? function ?

DESCRIPTION
The fxp device driver supports Ethernet interfaces based on the Intel i82557 and i82558 PCI Ethernet chips. The i82557 uses an external media interface, whereas the i82558 includes a built-in Intel i82555 PHY.

Supported cards include the Intel EtherExpress Pro 10+, EtherExpress Pro 100B, and EtherExpress Pro 100+.

MEDIA SELECTION
Media selection is supported via MII. See ifmedia(4) and mii(4) for more information.

EtherExpress Pro 10+ boards may use a Seeq 80c24 AutoDUPLEX(tm) media interface. Boards with these chips do not support media selection, as the 80c24 has no programming interface, and no way to read link status. These boards claim a media of "manual" since they self-configure based on the configuration of the link partner (hub or switch).

DIAGNOSTICS

fxp0: WARNING: SCB timed out! The driver timed out waiting for the chip's command interface to become ready.

fxp0: too many segments, aborting The driver encountered a packet that included too many DMA segments, and was not able to allocate a new buffer to transmit the packet from. The packet has been dropped.

fxp0: too many segments, retrying The driver encountered a packet that included too many DMA segments, and allocated a new buffer to transmit the packet from.

fxp0: can't load mbuf chain, error = %d The driver was unable to load a transmit DMA map, and has reported the errno value.

fxp0: device timeout The device failed to generate a transmit complete interrupt for the last packet transmitted. The device has been reset.

fxp0: can't load rx buffer, error = %d The driver was unable to load the DMA map for a receive buffer, and has reported the errno value. This error is currently fatal, and will panic the system.

fxp0: fxp_mdi_read: timed out The MDIO failed to become ready during an MII read operation.

fxp0: fxp_mdi_write: timed out The MDIO failed to become ready during an MII write operation.

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