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22ea1671cf
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16159 Commits

Author SHA1 Message Date
thorpej
22ea1671cf Update for new mbuf code. 1997-03-27 20:40:09 +00:00
thorpej
667f747f9a m_copyback() is now in uipc_mbuf.c 1997-03-27 20:38:20 +00:00
thorpej
d1c9089a16 Update for the new mbuf code, in a slighly kludgy way. Basically, these 
drivers played a somewhat evil trick with clusters, which is now
replaced by a somewhat evil trick with regular malloc'd memory.
 1997-03-27 20:36:14 +00:00
thorpej
2a4b742e6a Update and enhancement to the mbuf code, to support use of non-cluster 
external storage.  Highlights:

	- additional "void *" argument to (*ext_free)(), an opaque
	  cookie for use by the free function.
	- MCLALLOC() and MCLFREE() calls are gone.  They are replaced
	  by MEXTADD() (add external storage to mbuf), MEXTMALLOC()
	  (malloc() external storage and attach to mbuf), and
	  MEXTREMOVE() (remove external storage from mbuf).
	- completely new external storage reference counting
	  mechanism; mclrefcnt[] is gone.

These changes will eventually be used to pass driver DMA buffers up
the network stack, and reduce/eliminate copies in certain code paths
(e.g. NFS writes).

From Matt Thomas <matt@3am-software.com> and myself <thorpej@nas.nasa.gov>,
with some input from Chris Demetriou <cgd@cs.cmu.edu> and review by
Charles Hannum <mycroft@mit.edu>.
 1997-03-27 20:33:07 +00:00
pk
6fee4ceb1f viking_cache_enable: clear caches only if not yet on. 
viking_pcache_flush: don't use flash-clear; use hard-coded parms instead(XXX)
 1997-03-27 16:02:10 +00:00
darrenr
fe3bc025d0 Bring in entire 3.2alpha2 source tree 1997-03-27 15:13:58 +00:00
mikel
4ab6dc7d2e allow examination of SIGKILL and SIGSTOP signal handlers (but still 
disallow changes); from Klaus Klein in PR standards/3398.
 1997-03-27 07:52:25 +00:00
scottr
1cc0fb9b24 Add SDEV_AUTOSAVE quirks for IBM 0663H{08,12} disks 1997-03-27 07:37:54 +00:00
scottr
b316767c92 Work around an ambiguity in the SCSI spec. Some implementations, 
particularly older ones, don't do a SAVE DATA POINTER before disconnecting.
When the driver reconnects, it does an implicit RESTORE POINTERS, and
restores the data pointer from *before* the last transfer.  If the driver
calculates the residual using the data pointer and doesn't account for
this, the residual will be wrong.

What we do is test for the SDEV_AUTOSAVE quirk when we see a disconnect
message, falling through to do a SAVE DATA POINTER if the quirk applies
to this target.

The workaround was suggested by Mycroft, who also provided the explanation
of the problem.  Actual code was (mostly) ripped off from the 53C9x driver.
 1997-03-27 07:30:40 +00:00
mikel
b81091e992 POSIX.1 specifies that a failed link() to a directory must return EPERM, 
and EMLINK was not documented; from Klaus Klein in PR standards/3397.
Also documented EOPNOTSUPP for filesystems that don't support hard links.
 1997-03-27 07:30:25 +00:00
mycroft
b9a022ebe6 Add EXEC_ELF32. 1997-03-27 06:18:31 +00:00
mikel
19fd4b60de make setpgid(pid, pgrp) return EINVAL if pgrp < 0 as required by POSIX.1; 
from Klaus Klein in PR standards/3395.
 1997-03-27 06:14:03 +00:00
cgd
bf22891897 update for current system configuration 1997-03-27 06:04:39 +00:00
gwr
8be7d1ef9e No longer need the hack that forced SCSI_POLL when cold. 1997-03-27 01:16:01 +00:00
pk
c5d5c54038 Add workaround for the "extraneous bytes after re-select" problem that 
ESP100 chips may exhibit.
 1997-03-27 00:29:57 +00:00
gwr
5b48e061ce cleanup 1997-03-27 00:15:31 +00:00
gwr
9228e630d5 s/boot/cpu_reboot/ 1997-03-26 23:44:27 +00:00
gwr
c29412f1bb fix a warning 1997-03-26 23:27:12 +00:00
gwr
37b247edde Renames: /dumpconf/cpu_dumpconf/, /boot/cpu_reboot/ 1997-03-26 22:42:13 +00:00
gwr
71e43d14ab Move findroot/setroot stuff from configure() to cpu_rootconf(). 1997-03-26 22:38:40 +00:00
gwr
7b23790667 Add cdev_lpt_init(NPP,pp) for the 3/80 1997-03-26 17:29:10 +00:00
gwr
c304845074 Arrange to make pp.h needed by conf.c 
(printer port driver is on the way).
 1997-03-26 17:26:48 +00:00
leo
27228d890b Apply optimizations suggested by gwr & mycroft. 1997-03-26 15:50:39 +00:00
leo
c28576c255 Close disk after opening it to read the disklabel. The previous code did 2 
opens...
 1997-03-26 15:49:31 +00:00
leo
16bc86449a Use m68k/sig_machdep.c 1997-03-26 15:46:12 +00:00
leo
1bca40723b Add missing 'break'. 1997-03-26 15:44:03 +00:00
thorpej
66908db327 Resolve conflicts from merge. 1997-03-26 02:08:07 +00:00
thorpej
8443f8fad0 Resolve conflicts from merge. 1997-03-26 01:33:32 +00:00
thorpej
fecae4de60 Back out the previous change (add IFM_10_EXT) after some dicussion 
w/ BSDI and Matt Thomas.
 1997-03-26 01:19:27 +00:00
perry
51157fe131 Comment out the wt driver -- its rather dangerous to ed users, as it 
turns out. Also, add a comment explaining this.
 1997-03-26 01:16:23 +00:00
pk
b468feeebf In pmap_remove(), check for an empty segment before calling one of the 
helper functions. This cuts down the number of needless function calls
by approx. 80%, which has a healthy effect on the responsiveness of
a machine under heavy process creation/teardown loads.
The VM system seems to be fond of asking to delete page mappings
which aren't there..
 1997-03-25 23:04:02 +00:00
scottr
757d4ce5d4 Add SDEV_NOLUNS quirk for Seagate ST125N. 1997-03-25 22:33:50 +00:00
christos
d465daac1e make sure that the tty layer restarts the ppp layer when there is an error 
such as out of buffer space.
 1997-03-25 22:33:25 +00:00
cgd
6f1ffd0192 kill cfb and sfb in the standard configs 1997-03-25 20:35:03 +00:00
jonathan
3f9bb9b9e8 Add <if_media.h>, am7990var.h requires it. 1997-03-25 19:06:02 +00:00
christos
93b36b663d PR/3388 from Tatoku Ogaito: Add product id for another soundblaster PnP card. 1997-03-25 15:16:49 +00:00
mikel
eba3c11c27 some cleanup; still needs a *lot* of work 1997-03-25 07:57:14 +00:00
mark
b28684079f Fix broken vidcaudio_set_format() prototype. 1997-03-25 05:09:01 +00:00
jonathan
9a834c4127 Add ARP hardware type for Richochet "starmode" radio addresses. 1997-03-25 02:30:52 +00:00
gwr
90a79f75fe Change continue to break in a few places (as suggested by mycroft). 1997-03-24 23:49:39 +00:00
cgd
b1e061e899 Optimize the case of writing to /dev/zero, and clean up the 
surrounding code a bit.  Partly suggested by gwr, them implemented
by mycroft in the i386 port, then cleaned up a bit to fit here.
 1997-03-24 23:01:40 +00:00
pk
eb3b79e0f2 Move `#endif /* SUN4M */' downward. 1997-03-24 22:56:37 +00:00
mycroft
6962daa0f8 KNF police. 1997-03-24 21:50:48 +00:00
mycroft
13ca4f0381 Do not return generation counts to the user. 1997-03-24 21:44:53 +00:00
christos
261ef8aa5a Add missing slpx(); from Bill Sommerfeld 1997-03-24 21:23:10 +00:00
mycroft
46f55019b7 Optimize the case of writing to /dev/zero, and clean up the 
surrounding code a bit.  Partly suggested by gwr.
 1997-03-24 21:16:59 +00:00
pk
4a77b646a2 Add `c_associativity' field. 1997-03-24 19:56:58 +00:00
mycroft
86f68e3d77 Build fdboot. 1997-03-24 19:53:34 +00:00
mycroft
25d692da5e Fix calculation of fmem and fmemsz for old ROMs. 1997-03-24 19:51:28 +00:00
mycroft
1b9557e827 Make the segment rounding code consistent. (No functional change.) 
If DEBUG_MEMORY_LIST, wait for a keypress before starting the kernel; never
time out.
 1997-03-24 18:56:26 +00:00