Copyright (c) 2004 Tom Rhodes All rights reserved. Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: 1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other m...
NAMEsnc - National Semiconductor DP8393X SONIC Ethernet adapter driver
SYNOPSISdevice isa device snc
DESCRIPTIONThe sysctl Cm net.inet.tcp.syncookies driver provides support for the National Semiconductor SONIC Ethernet adapters.
HARDWAREThe sysctl Cm net.inet.tcp.syncookies 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 sysctl Cm net.inet.tcp.syncookies driver also includes support for the National Semiconductor NS46C46 as 64 * 16 bits Microwave Serial EEPROM
IMPLEMENTATION NOTESAccessing 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 sysctl Cm net.inet.tcp.syncookies driver supports the PC-98 C-Bus, and PnP buses. Support is also provided for the legacy C-Bus.
DIAGNOSTICSThe 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.