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4795 Commits

Author SHA1 Message Date
dyson
b4a48be7d8 Fix another problem with the new pipe code, pointed out by Bruce Evans. 
This one fixes a problem with interactions with signals.
 1996-01-31 06:00:45 +00:00
asami
565f8b6987 Mirror support. When CCDF_MIRROR is set: 
(1) The reads are always done from the first n/2 disks.

(2) Each write is done twice, to the "data" disk (in the first half) and
    the "mirror" disk (in the second half).

ccdbuffer() now takes an extra argument (struct ccdbuf **) and stores
the pointer to ccdbuf in there.  In case of a mirrored write, it
allocates and stores two pointers.  The "residual" is also doubled
for mirrored writes so that ccdiodone() can correctly tell when all
the writes are done.
 1996-01-31 03:28:21 +00:00
dyson
78108c6c2f Fix some problems with return codes on the new pipe stuff. Bruce Evans 
found the problems, and this commit will fix the "first batch" :-).
 1996-01-31 02:05:12 +00:00
mpp
d6779c281f Fix a bunch of spelling errors in the comment fields 
of a bunch of system include files.
 1996-01-30 23:33:04 +00:00
ache
6cdd16b07b Audio part: various improvements from NetBSD driver 
Convert LBA to network order now
 1996-01-30 23:27:20 +00:00
ache
42c8a1d37f Bugfix: don't convert LBA to host order, they must stay in network order. 1996-01-30 23:11:45 +00:00
ache
19ebe9bcfb Don't convert LBA to host order, they must stay in network order 
as old code does.
 1996-01-30 23:11:06 +00:00
mpp
f3dd75a38d Fix a bunch of spelling errors in the comment fields of 
a bunch of system include files.
 1996-01-30 23:02:38 +00:00
asami
7b3fa6ae27 Prepare for adding mirroring. Check for flags (mirror forces uniform), 
reduce the size to half, etc.  Right now it only uses the first n/2 disks
for both read and write.
 1996-01-30 22:34:53 +00:00
asami
85df1b8faa Add mirror flag. 1996-01-30 22:33:31 +00:00
wollman
212c3eba09 Fix a logic error in determining whether something is page-aligned 
that became evident while I was thinking about something else.
(No, I am not working on the wd driver itself.)
 1996-01-30 19:04:09 +00:00
wollman
0f051dbe15 No longer use the cyclecounter to attempt to correct for late or missed 
clock interrupts.

Keep a 1-in-16 smoothed average of the length of each tick.  If the
CPU speed is correctly diagnosed, this should give experienced users
enough information to figure out a more suitable value for `tick'.
 1996-01-30 18:56:47 +00:00
ache
a6fe55033b OOPS, forget to adjust starting track to not physically read 
leadout entry
 1996-01-30 16:38:30 +00:00
ache
b907f5fc5a Use ntohs/ntohl when reading TOC instead of hardcoded byte swapping. 
Put fake entry len for MSF format too.
 1996-01-30 16:12:18 +00:00
ache
9d251a7f88 Calculate leadout entry instead of honor ATAPI request 
(it can be wrong for some devices)
 1996-01-30 15:25:12 +00:00
ache
4801968f5e READTOCENTRYS: make fake leadout entry 1996-01-30 14:30:43 +00:00
ache
9e0a71c3ee READTOCENTRYS: protect against stack overflow when incorrect data 
stored in CD's TOC
 1996-01-30 13:15:28 +00:00
ache
37f4a0aab1 READTOCENTRYS: handle 0 and lead out requests, add argument checking 1996-01-30 12:59:00 +00:00
dg
7b11911f52 savectx() strikes again: the saved stack pointer wasn't properly adjusted 
to remove the return address. It's only the frame pointer and luck that
allowed the code to work at all.
 1996-01-30 12:54:21 +00:00
peter
ed8a6cec36 Call pipe_stat() when presented with a DTYPE_PIPE file in the linux 
fstat() syscall, rather than panic("linux newfstat").

(Note: I've extracted this from a larger set of diffs, I'm confident I've
 not missed any dependencies but can't modload it to test it on my system)
 1996-01-30 12:23:17 +00:00
ache
757048e121 Don't generate EINVAL for data_len too big in READTOCENTRYS, it 
reduces automatically to reasonable value in the code below
 1996-01-30 12:07:15 +00:00
ache
13a5a1d1e4 Fix READTOCENTRYS partialy based on kientzle@netcom.com patch partialy on 
my own ideas
 1996-01-30 11:32:20 +00:00
ache
b2ad84f5ce Fix audio part, especially READTOCENTRYS inspired by NetBSD driver 
and my own ideas
 1996-01-30 10:31:12 +00:00
dg
e7566de9d1 Increase tmpstk size to 8K and make certain it is longword aligned. 1996-01-30 07:59:02 +00:00
dg
4697e89bc7 Restore my change to the watchdog params that Paul spammed in rev 1.18. 1996-01-30 07:25:44 +00:00
mpp
91826993d1 Fix a typo in a comment. 1996-01-30 02:56:08 +00:00
se
42c5ea8f89 Add heuristic to detect multi-function devices that don't announce this 
feature in the header type register, though it is required by the PCI spec.
This should correctly probe both functions of the Intel 82371FB chip,
without the need for a special case based on the device ID.
 1996-01-30 01:14:29 +00:00
joerg
12324b6255 Remove redundant declaration for worminit(). Dunno why my config(8) 
didn't generate it, but it's supposed to.
 1996-01-29 19:46:26 +00:00
dg
f13dc7b998 Added a check/panic for vm_map_find failing to find space for the page 
tables/u-pages when forking. This is a "can't happen" case. :-)
 1996-01-29 12:10:30 +00:00
dg
33311f68ed Implement what I mentioned in rev 1.18: limit per-bucket allocations to 
60% of physical memory or 60% of malloc area size, whichever is smaller.
 1996-01-29 11:12:37 +00:00
dg
bc2512f99f Fixed two bugs in the calculation of the malloc area (kmem_map) size: 
1) The calculation didn't account for NMBCLUSTERS, so if a large number of
   clusters was specified, it would leave little or no space for kernel
   malloc.
2) It was bogusly restricted to v_page_count. This doesn't take into
   account the sparseness of the malloc area and would have caused
   problems on machines with small amounts of memory. It should probably
   instead be changed to set the malloc limit to be constrained by
   the amount of memory, but I didn't do this.
 1996-01-29 09:58:34 +00:00
gibbs
2d24ffe647 Add LIST_INSERT_BEFORE and TAILQ_INSERT_BEFORE. These are used by the 
new eisaconf code.
 1996-01-29 03:20:44 +00:00
gibbs
cab528dc9e Prevent media eject on first open and re-enable ejection on last close. 
The previous behavior was based on the lifetime of a "mount session"
which isn't very obvious.
 1996-01-29 03:19:23 +00:00
gibbs
809a50d9ae Update copyright. 1996-01-29 03:18:20 +00:00
gibbs
6757073e1c Kernel printf now returns int. 1996-01-29 03:18:05 +00:00
gibbs
2e4a124f9a Changes to support Performance enhancements in the sequencer. 
Bring back the polling code (for dumps mostly), but protect it
with splbio() to make it safe for reprobes.
 1996-01-29 03:17:39 +00:00
gibbs
c2da320533 Finally commit Serge's multicast and "misc other changes" patch. I 
don't have a network to test it on here, but it does probe my card okay.

Submitted by: "Serge A. Babkin" <babkin@hq.icb.chel.su>
 1996-01-29 03:16:14 +00:00
gibbs
0b627d75b7 Another pass through eisaconf. Ioaddrs and Maddrs are link lists now. 
The Bt driver is the only one that actually registers multiple addresses.

Probe output is formatted to 80 columns.
 1996-01-29 03:13:23 +00:00
gibbs
e94d9bd8af Performance optimizations. Unroll all bcopies. Use PIO to transfer SCBs 
since setting up the DMA is too costly.  Restructure for efficiency.

Pause the sequencer when a parity error occurs so that the kernel driver
knows during which phase the error was encountered.
 1996-01-29 03:12:06 +00:00
dyson
e2c043171a Fixed an uninitialized variable (argument to vm_map_find) -- problem 
that DG detected, and promptly found a fix.
Submitted by:	davidg
 1996-01-29 02:57:33 +00:00
dyson
2e58df0ad2 Added sys_pipe into files. 1996-01-28 23:43:06 +00:00
dyson
894b801eee Enable the new fast pipe code. The old pipes can be used with the 
"OLD_PIPE" config option.
 1996-01-28 23:41:40 +00:00
dyson
026024aadd Added new files to support the new fast pipes. After the follow-on 
commits, pipe performance should increase significantly.  The pipe(2)
system call is currently supported, while fifofs will be added later.
 1996-01-28 23:38:26 +00:00
joerg
72b11e691f Make worm.c compile with -Wall -Werror again. 
. remove some unused variables
. declare worminit() right this time, it's actually extern (?)
. use wormminphys(), now that it's already there (hope i've got this right)
 1996-01-28 23:33:23 +00:00
julian
65e9defd06 Submitted by: rich (which one?) 
Another special case for probing multi-CD cdrom drives.

2nd try at this patch.
 1996-01-28 22:41:44 +00:00
wollman
c02be74f05 Implement a prototype interface to bus-master IDE DMA on the Triton 
chipset.  This does not attempt to do anything special with the timing
on the hope that the BIOS will have done the right thing already.  The
actual interface from the wd driver to the new facility is not
implemented yet (this commit being an attempt at prodding someone else
to do it because looking at the wd driver always confuses the h*** out of me).
 1996-01-28 22:16:20 +00:00
jkh
fbcc7783ad Back out the previous change. It's not correct for -current. 1996-01-28 21:51:57 +00:00
jkh
fabcee231e Add an entry for the "MBR-7", whatever that is. 
Submitted by:	rich
 1996-01-28 20:43:49 +00:00
jkh
da1e719a0f 3c590 driver for FreeBSD 
Submitted by:	Frederick Earl Gray <fgray@owlnet.rice.edu>
 1996-01-28 20:31:11 +00:00
dyson
b3020b7bf5 An earlier modification had decreased CPU usage, but also 
decreased performance.  This essentially undoes that change.
 1996-01-28 18:25:54 +00:00