structural changes should happen, as it now does the right thing
w.r.t. buffer resizing and having lots of buffers vs. relatively
little buffer space. Ports can now "do the standard thing", re:
nbuf and bufpages, which is make nbuf = bufpages by default.
(1) the 'physmem' constant has a value which i don't think is
correct
(2) not sure what happens if you mmap a region of kmem which is
not in the kernel's address space...
* patch from vak@zebub.msk.su (Serge V.Vakulenko) to work around
* a hardware bug in cheap WD clone boards where the PROM checksum
* byte is always zero
*
* Revision 2.4 93/09/29 21:24:30 davidg
* Added software NIC reset in NE probe to work around a problem
* with some NE boards where the 8390 doesn't reset properly on
* power-up. Remove initialization of IMR/ISR in the NE probe
* because this is inherent in the reset.
*
* Revision 2.3 93/09/29 15:10:16 davidg
* credit Charles Hannum
*
* Revision 2.2 93/09/29 13:23:25 davidg
* added no multi-buffer override for 3c503
*
* Revision 2.1 93/09/29 12:32:12 davidg
* changed multi-buffer count for 16bit 3c503's from 5 to 2 after
* noticing that the transmitter becomes idle because of so many
* packets to load.
*
* Revision 2.0 93/09/29 00:00:19 davidg
* many changes, rewrites, additions, etc. Now supports the
* NE1000, NE2000, WD8003, WD8013, 3C503, 16bit 3C503, and
* a variety of similar clones. 16bit 3c503 now does multi
* transmit buffers. Nearly every part of the driver has
* changed in some way since rev 1.30.
files.i386.newconf: Remove lpa.
TEST: Enable lms and lpt.
*: Change all lpa's to lpt's. Change fd[0-3] to fd* and wd[0-3] to wd*.
Remove all explicit irq's.
startup in machdep.c... buffers are now *never* allocated after boot.
currently, the limitation that says bufpages must cover nbuf*MAXBSIZE
still exists, but this is one step closer to removing that limitation.
time conversion in delay().
fd.c: Minor changes to autoconfig. Use dv_parent rather than storing another
pointer to the fdc_softc in each fd_softc. Change disk label stuff for our
kernel.
icu.s: Make splx() and splnone() return previous cpl for now.
isa.c: Minor autoconfig changes.
isa.h: rtcin() is now nvram() and is declare in nvram.h. Make isaphysmem a
caddr_t.
pccons.c: XXXX: Maybe we should insist they open /dev/io now.
timerreg.h: #define TIMER_NPORTS.
wd.c: Delete unused wdnoreloc() and wddospart(), and use remaining two bits in
unit number. struct disk --> struct wd_softc. struct board --> struct
wdc_softc. Still needs much work.
phil