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National Semiconductor DP8393X SONIC Ethernet adapter driver.

Chapter
September 4, 2004
SNC(4) BSD/i386 Kernel Interfaces Manual SNC(4)

NAME

snc — National Semiconductor DP8393X SONIC Ethernet adapter driver

SYNOPSIS

device isa device snc

DESCRIPTION

The snc driver provides support for the National Semiconductor SONIC Ethernet adapters.

HARDWARE

The snc driver supports the following cards: · National Semiconductor DP83934AVQB · NEC PC-9801-83 · NEC PC-9801-84 · NEC PC-9801-103 · NEC PC-9801-104 · NEC PC-9801N-15 · NEC PC-9801N-25 · NEC PC-9801N-J02 PCMCIA · NEC PC-9801N-J02R PCMCIA The snc driver also includes support for the National Semiconductor NS46C46 as 64 * 16 bits Microwave Serial EEPROM.

IMPLEMENTATION NOTES

Accessing SONIC card data structures and registers as 32 bit values makes code endianness independent. The SONIC is however always in big-endian mode so it is necessary to ensure that data structures shared between the CPU and the SONIC card are always in big-endian order. The snc driver supports the PC-98 C-Bus, and PnP buses. Support is also provided for the legacy C-Bus.

DIAGNOSTICS

The following driver specific error messages may be reported: snc%d: snc_nec16_register_irq: unsupported irq (%d) The card returned an IRQ which is not supported by the driver. snc%d: invalid packet length %d bytes An attempt to transfer a data packet failed due to an invalid packet length.

SEE ALSO

netintro(4), bus_alloc_resource_any(9)

HISTORY

The snc driver was ported from NetBSD by Motomichi Matsuzaki <@e-mail.ne.jp> and Hiroshi Yamashita <@msj.biglobe.ne.jp>. It first appeared in FreeBSD 4.2. This manual page first appeared in FreeBSD 5.3.

AUTHORS

This manual page was written by Tom Rhodes <@FreeBSD.org>.

BUGS

Currently the snc driver only works on the PC-98 architecture. It should probably work on the i386 architecture as well.
BSD September 4, 2004 BSD
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