John Polstra [Fri, 9 Jul 1999 16:22:55 +0000 (16:22 +0000)]
Fix bug: if a dlopen() failed (e.g., because of undefined symbols),
the dynamic linker didn't clean up properly. A subsequent dlopen()
of the same object would appear to succeed.
Another excellent fix from Max Khon.
PR: bin/12471
Submitted by: Max Khon <fjoe@iclub.nsu.ru>
Use the proctitle to indicate that we're busy wrapping a request for a
service. Inetd already uses the process title to indicate that a request
for an internal service is being serviced, so this addition is fairly
orthogonal.
Submitted by: David Malone <dwmalone@maths.tcd.ie>
Allow internal and external wrapping to be enabled independantly of
each other. Instead of allowing the -w option to be specified twice,
we now take -w (wrap external) and -W (wrap internal).
Bill Paul [Fri, 9 Jul 1999 04:30:09 +0000 (04:30 +0000)]
This commit adds driver support for the SysKonnect SK-984x series
gigabit ethernet adapters. This includes two single port cards
(single mode and multimode fiber) and two dual port cards (also single
mode and multimode fiber). SysKonnect is currently the only
vendor with a dual port gigabit ethernet NIC.
The ports on dual port adapters are treated as separate network
interfaces. Thus, if you have an SK-9844 dual port SX card, you
should have both sk0 and sk1 interfaces attached. Dual port cards
are implemented using two XMAC II chips connected to a single
SysKonnect GEnesis controller. Hence, dual port cards are really
one PCI device, as opposed to two separate PCI devices connected
through a PCI to PCI bridge. Note that SysKonnect's drivers use
the two ports for failover purposes rather that as two separate
interfaces, plus they don't support jumbo frames. This applies to
their Linux driver too. :)
Support is provided for hardware multicast filtering, BPF and
jumbo frames. The SysKonnect cards support TCP checksum offload
however this feature is not currently enabled (hopefully it will
be once we get checksum offload support).
There are still a few things that need to be implemeted, like
the ability to communicate with the on-board LM80 voltage/temperature
monitor, but I wanted to get the driver under CVS control and into
-current so people could bang on it.
A big thanks for SysKonnect for making all their programming info
for these cards (and for their FDDI and token ring cards) available
without NDA (see www.syskonnect.com).
These changes appear to give us benefits with both small (32MB) and
large (1G) memory machine configurations. I was able to run 'dbench 32'
on a 32MB system without bring the machine to a grinding halt.
* buffer cache hash table now dynamically allocated. This will
have no effect on memory consumption for smaller systems and
will help scale the buffer cache for larger systems.
* minor enhancement to pmap_clearbit(). I noticed that
all the calls to it used constant arguments. Making
it an inline allows the constants to propogate to
deeper inlines and should produce better code.
* removal of inherent vfs_ioopt support through the emplacement
of appropriate #ifdef's, with John's permission. If we do not
find a use for it by the end of the year we will remove it entirely.
* removal of getnewbufloops* counters & sysctl's - no longer
necessary for debugging, getnewbuf() is now optimal.
* buffer hash table functions removed from sys/buf.h and localized
to vfs_bio.c
* VFS_BIO_NEED_DIRTYFLUSH flag and support code added
( bwillwrite() ), allowing processes to block when too many dirty
buffers are present in the system.
* removal of a softdep test in bdwrite() that is no longer necessary
now that bdwrite() no longer attempts to flush dirty buffers.
* slight optimization added to bqrelse() - there is no reason
to test for available buffer space on B_DELWRI buffers.
* addition of reverse-scanning code to vfs_bio_awrite().
vfs_bio_awrite() will attempt to locate clusterable areas
in both the forward and reverse direction relative to the
offset of the buffer passed to it. This will probably not
make much of a difference now, but I believe we will start
to rely on it heavily in the future if we decide to shift
some of the burden of the clustering closer to the actual
I/O initiation.
* Removal of the newbufcnt and lastnewbuf counters that Kirk
added. They do not fix any race conditions that haven't already
been fixed by the gbincore() test done after the only call
to getnewbuf(). getnewbuf() is a static, so there is no chance
of it being misused by other modules. ( Unless Kirk can think
of a specific thing that this code fixes. I went through it
very carefully and didn't see anything ).
* removal of VOP_ISLOCKED() check in flushbufqueues(). I do not
think this check is necessary, the buffer should flush properly
whether the vnode is locked or not. ( yes? ).
* removal of extra arguments passed to getnewbuf() that are not
necessary.
* missed cluster_wbuild() that had to be a cluster_wbuild_wb() in
vfs_cluster.c
* vn_write() now calls bwillwrite() *PRIOR* to locking the vnode,
which should greatly aid flushing operations in heavy load
situations - both the pageout and update daemons will be able
to operate more efficiently.
* removal of b_usecount. We may add it back in later but for now
it is useless. Prior implementations of the buffer cache never
had enough buffers for it to be useful, and current implementations
which make more buffers available might not benefit relative to
the amount of sophistication required to implement a b_usecount.
Straight LRU should work just as well, especially when most things
are VMIO backed. I expect that (even though John will not like
this assumption) directories will become VMIO backed some point soon.
Submitted by: Matthew Dillon <dillon@backplane.com>
Reviewed by: Kirk McKusick <mckusick@mckusick.com>
Bill Paul [Wed, 7 Jul 1999 21:49:14 +0000 (21:49 +0000)]
Fix a potential race condition that can occur in xl_start(). If the NIC
clears out the transmit queue and zeroes the downlist pointer register,
but xl_txeof() isn't called before xl_start() tries to queue more packets,
xl_start() will think that the DMA is still in progress and not update
the downlist register again, thus causing packets to sit in the transmit
queue forever.
Patch provided by: Russell T Hunt <alaric@MIT.EDU>
- Fixed memory leak in sc_alloc_history_buffer().
- Correctly observe the variable `extra_history_size' when changing
the size of history (scroll back) buffer.
- Added sc_free_history_buffer().
Peter Wemm [Wed, 7 Jul 1999 12:49:47 +0000 (12:49 +0000)]
Do away with ${network_interfaces} in rc.conf. Just use `ifconfig -l` to
get a list of interfaces, and then automatically configure them if
${ifconfig_${ifn}} or /etc/start_if.${ifn} exists.
This makes it a lot easier to deal with machines that constantly change
their network configuration as you can leave ifconfig settings for all
the possible cards - just the ones that are present will be configured.
Martin Cracauer [Wed, 7 Jul 1999 06:44:53 +0000 (06:44 +0000)]
Break lines to be < 80 chars. This has been done only to that file in
doscmd that was affected by the SA_SIGINFO changes (which made many
lines longer).
This application is in need for general code reformatting and warning
fixes.
Warner Losh [Wed, 7 Jul 1999 04:46:46 +0000 (04:46 +0000)]
Per requests from the community, commit rudimentary cross compilation
support. I've been building world with these changes for months w/o
ill effect. I've also managed to build the cross tool chain for MIPS
with these patches.
Please note that the extent to which these patches work is largely
dictated by how well our tool chains support the cross compilation.
Building alpha binaries on i386 doesn't work. Supposedly building
i386 binaries on alpha does work, but I've not verified it with these
patches, however.
Added pccard_conf parameter to /etc/rc.conf,
and set it to "/etc/pccard.conf.sample" in /etc/defaults/rc.conf.
Perhaps this default value can be inappropriate,
but I set to this value for the convenience of PC-card boot.flp users.
Please correct it if there are better solutions.
Use -finet option to netstat(1), and don't discard anything.
Don't truncate the protocol field.
These two changes conspire to make sockstat(1) show divert sockets.
Peter Wemm [Tue, 6 Jul 1999 17:48:16 +0000 (17:48 +0000)]
Implement SA_SIGINFO support for the Alpha. This is obviously a little
bit preliminary. It still returns an old-style code arg if SA_SIGINFO
is not set, but I'm not sure of the value of this since the traditional
bsd-style fourth argument (address) is missing.
Martin Cracauer [Tue, 6 Jul 1999 07:13:48 +0000 (07:13 +0000)]
Implement SA_SIGINFO for i386. Thanks to Bruce Evans for much more
than a review, this was a nice puzzle.
This is supposed to be binary and source compatible with older
applications that access the old FreeBSD-style three arguments to a
signal handler.
Except those applications that access hidden signal handler arguments
bejond the documented third one. If you have applications that do,
please let me know so that we take the opportunity to provide the
functionality they need in a documented manner.
Also except application that use 'struct sigframe' directly. You need
to recompile gdb and doscmd. `make world` is recommended.
Example program that demonstrates how SA_SIGINFO and old-style FreeBSD
handlers (with their three args) may be used in the same process is at
http://www3.cons.org/tmp/fbsd-siginfo.c
Programs that use the old FreeBSD-style three arguments are easy to
change to SA_SIGINFO (although they don't need to, since the old style
will still work):
Old args to signal handler:
void handler_sn(int sig, int code, struct sigcontext *scp)
The latter is also pointed to by new:third, but accessing via
si->si_scp is preferred because it is type-save.
FreeBSD implementation notes:
- This is just the framework to make the interface POSIX compatible.
For now, no additional functionality is provided. This is supposed
to happen now, starting with floating point values.
- We don't use 'sigcontext_t.si_value' for now (POSIX meant it for
realtime-related values).
- Documentation will be updated when new functionality is added and
the exact arguments passed are determined. The comments in
sys/signal.h are meant to be useful.
Martin Cracauer [Tue, 6 Jul 1999 06:55:29 +0000 (06:55 +0000)]
Rename struct members sa_siginfo. POSIX reserves identifiers starting
with sa_ when <signal.h> is included. They would conflict with the
upcoming SA_SIGINFO implementation.
Brian Feldman [Tue, 6 Jul 1999 05:25:41 +0000 (05:25 +0000)]
I made some cleanups, rearranged things a bit, and made AMD Features default
printing on CPUs that have it.
If there are no objections, I'll MFC all recent changes (harmless, really)
to 3.2 and PAO.
Jason Evans [Tue, 6 Jul 1999 00:25:38 +0000 (00:25 +0000)]
Always use growable thread stacks on the i386. The VM_STACK kernel option
must be made default for the alpha before growable thread stacks are
enabled for the alpha.
Bill Paul [Mon, 5 Jul 1999 20:19:41 +0000 (20:19 +0000)]
Remove ti_refill_rx_rings() and associated stuff; replace dirty RX buffers
in ti_rxeof() instead. This doesn't really seem to provide much in the
way of a performance boost, and I'm pretty sure it can cause mbuf leakage
in some extreme cases.
Let newuname return "Linux" as the OS name and not "FreeBSD". Also, return a
more sensible (for Linux applications) release number. Hardcoding a release
number has its drawbacks, but it will do for now.
Also try to load the interpreter without prepending "emul_path". This allows
dynamicly linked binaries to run in a chroot'd environment with "emul_path"
as the new root. The new behavior of loading interpreters is identical to the
principle of overlaying.
Mike Smith [Mon, 5 Jul 1999 08:52:54 +0000 (08:52 +0000)]
Move the initialisation/tuning of nmbclusters from param.c/machdep.c
into uipc_mbuf.c. This reduces three sets of identical tunable code to
one set, and puts the initialisation with the mbuf code proper.
Make NMBUFs tunable as well.
Move the nmbclusters sysctl here as well.
Move the initialisation of maxsockets from param.c to uipc_socket2.c,
next to its corresponding sysctl.
Use the new tunable macros for the kern.vm.kmem.size tunable (this should have
been in a separate commit, whoops).
My last modification for PC-card boot.flp was incomplete, and one more patch
is needed.
This seems a sort of quick-hack, but it's hard to fix it in proper way.
I'll do it later.
Bill Paul [Mon, 5 Jul 1999 05:40:29 +0000 (05:40 +0000)]
Take the Winbond driver out of GENERIC for the alpha. It'll come
back when it actually works on the alpha. How it got in here in the
first place I have no idea.
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