minix/drivers/dpeth
Cristiano Giuffrida d1fd04e72a Initialization protocol for system services.
SYSLIB CHANGES:
- SEF framework now supports a new SEF Init request type from RS. 3 different
callbacks are available (init_fresh, init_lu, init_restart) to specify
initialization code when a service starts fresh, starts after a live update,
or restarts.

SYSTEM SERVICE CHANGES:
- Initialization code for system services is now enclosed in a callback SEF will
automatically call at init time. The return code of the callback will
tell RS whether the initialization completed successfully.
- Each init callback can access information passed by RS to initialize. As of
now, each system service has access to the public entries of RS's system process
table to gather all the information required to initialize. This design
eliminates many existing or potential races at boot time and provides a uniform
initialization interface to system services. The same interface will be reused
for the upcoming publish/subscribe model to handle dynamic 
registration / deregistration of system services.

VM CHANGES:
- Uniform privilege management for all system services. Every service uses the
same call mask format. For boot services, VM copies the call mask from init
data. For dynamic services, VM still receives the call mask via rs_set_priv
call that will be soon replaced by the upcoming publish/subscribe model.

RS CHANGES:
- The system process table has been reorganized and split into private entries
and public entries. Only the latter ones are exposed to system services.
- VM call masks are now entirely configured in rs/table.c
- RS has now its own slot in the system process table. Only kernel tasks and
user processes not included in the boot image are now left out from the system
process table.
- RS implements the initialization protocol for system services.
- For services in the boot image, RS blocks till initialization is complete and
panics when failure is reported back. Services are initialized in their order of
appearance in the boot image priv table and RS blocks to implements synchronous
initialization for every system service having the flag SF_SYNCH_BOOT set.
- For services started dynamically, the initialization protocol is implemented
as though it were the first ping for the service. In this case, if the
system service fails to report back (or reports failure), RS brings the service
down rather than trying to restart it.
2010-01-08 01:20:42 +00:00
..
3c501.c Removed $Log$ tags 2005-08-05 19:08:43 +00:00
3c501.h Import of dpeth 3c501/3c509b/.. ethernet driver by 2005-06-29 10:16:46 +00:00
3c503.c Removed $Log$ tags 2005-08-05 19:08:43 +00:00
3c503.h Import of dpeth 3c501/3c509b/.. ethernet driver by 2005-06-29 10:16:46 +00:00
3c509.c Fixed a glitch introduced in safe i/o conversion. 2007-10-17 10:50:18 +00:00
3c509.h Import of dpeth 3c501/3c509b/.. ethernet driver by 2005-06-29 10:16:46 +00:00
8390.c Safecopy support in ethernet drivers. 2006-07-10 12:43:38 +00:00
8390.h Remove double-blank lines (Al) 2005-08-22 15:17:42 +00:00
devio.c Safecopy support in ethernet drivers. 2006-07-10 12:43:38 +00:00
dp.c Initialization protocol for system services. 2010-01-08 01:20:42 +00:00
dp.h Safecopy support in ethernet drivers. 2006-07-10 12:43:38 +00:00
Makefile Basic VM and other minor improvements. 2008-11-19 12:26:10 +00:00
ne.c Removed $Log$ tags 2005-08-05 19:08:43 +00:00
ne.h Import of dpeth 3c501/3c509b/.. ethernet driver by 2005-06-29 10:16:46 +00:00
netbuff.c Safecopy support in ethernet drivers. 2006-07-10 12:43:38 +00:00
README Import of dpeth 3c501/3c509b/.. ethernet driver by 2005-06-29 10:16:46 +00:00
wd.c Remove double-blank lines (Al) 2005-08-22 15:17:42 +00:00
wd.h Remove double-blank lines (Al) 2005-08-22 15:17:42 +00:00

This is my implementation of a new network task 
for the Minix kernel.  I did it initially to handle
a 3c501 board (Etherlink), but those board are so
unstable that it is not worth using them except for
learning how to implement a driver.  When I got a
3c509b board (Etherlink III) it was easier to
write the code to handle them.  

The Minix code in 'dp8390.c' is too specific for the
National chip set, so what I did was to remove as 
much as I needed of the code dependant from the chip
and produce a generic task that, I hope, will be able
to handle many more cards.

$Log$
Revision 1.1  2005/06/29 10:16:46  beng
Import of dpeth 3c501/3c509b/.. ethernet driver by
Giovanni Falzoni <fgalzoni@inwind.it>.

Revision 1.3  2004/04/14 12:49:07  lsodgf0
Changes for porting to Minix 2.0.4 run on BOCHS

Revision 1.2  2002/03/25 14:16:09  lsodgf0
The driver for the NEx000 has been rewritten to be
operational with the ACCTON 18xx (an NE1000 clone)
The I/O routines for 16 bit cards are still untested..

Revision 1.1  2002/02/09 09:35:09  lsodgf0
Initial revision
The package is not fully tested, i.e. I had only 3Com
boards (3c501, 3c503, 3c503/16 and 3c509b) and WD8003.
I got also a NE1000 clone but it was not fully
operational and I could not appreciate the results.
For this reason the changes done to the interface
to I/O for 8 and 16 bits are not tested.
  
$Id$