bionic (4) snc.4freebsd.gz

Provided by: freebsd-manpages_11.1-3_all bug

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 <mzaki@e-mail.ne.jp> and Hiroshi Yamashita
     <bluemoon@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 <trhodes@FreeBSD.org>.


BUGS
     Currently the snc driver only works on the PC-98 architecture.  It should probably work on the i386
     architecture as well.