Mike Silbersack [Sat, 9 Aug 2003 02:55:11 +0000 (02:55 +0000)]
#ifdef INET6 the if_loop packet defrag; since only the ipv6 stack (might)
require this to be done, there's no reason to waste time doing it if
ipv6 isn't compiled in.
Fix sign-extension bug for 32 and 64-bit values. For 64-bit values
this involves the sign-extension of the high and low "word". Both
of which are 32-bit. The bug is especially harmful on ia64, where
0x9fffffffe0000000 is a common address (base of register stack).
This was invariably displayed as 0xffffffffe0000000.
The sign-extension is fixed by using {b|l}e{16|32|64}dec() where
applicable. Since elfdump(1) is not a bootstrap tool, dependency
on these functions is not a problem.
David Xu [Fri, 8 Aug 2003 22:20:59 +0000 (22:20 +0000)]
o Add code to GC freed KSEs and KSE groups
o Fix a bug in kse_free_unlocked(), kcb_dtor shouldn't be called because
the KSE is cached and will be resued in _kse_alloc().
Ruslan Ermilov [Fri, 8 Aug 2003 21:00:57 +0000 (21:00 +0000)]
Added the new knob MINIROOT that, when set, causes the creation
of the bootable UFS image, miniroot.ufs, fully identical to the
contents of the "bootonly" CD-ROM. The image is made available
on FTP as miniroot/miniroot.ufs.gz, for resemblance with NetBSD.
This replaces the boot.flp image for sparc64, making the latter
as coming with NO_FLOPPIES.
Fix two (2) bugs in one (1) statement:
o fix the len argument of memcmp(3) to be the size of the node field
of the uuid structure, not the size of the uuid structure itself.
We're comparing the node fields...
o uuid_compare(3) is specified to return -1, 0 or 1, depending on
the outcome of the comparison. memcmp(3) returns the difference
between the first differing bytes. Hence, we cannot ever return
the return value of memcmp(3) as-is.
PR: standards/55370
Submitted by: Konstantin Oznobihin <bork@rsu.ru>
Hajimu UMEMOTO [Fri, 8 Aug 2003 16:42:37 +0000 (16:42 +0000)]
Process the "O bit."
If the value of OtherConfigFlag changes from FALSE to TRUE, the
host should invoke the stateful autoconfiguration protocol,
requesting information.
[RFC 2462 Section 5.5.3]
Ruslan Ermilov [Fri, 8 Aug 2003 15:44:17 +0000 (15:44 +0000)]
Fix a bug that caused i386 to produce broken binaries for big-endian
64-bit platforms. (size_t is 32bit on i386, but Elf_Shdr.sh_size is
64bit on SPARC64.)
Allow gcc driver to process -r option iself, do not use -Wl,-r to
bypass it. Doing otherwise did not allow compiler to detect and disable
conflicting options generated from specs.
Bill Fumerola [Thu, 7 Aug 2003 21:27:17 +0000 (21:27 +0000)]
0) preallocate per-interface context structures without the ifnet lock held
1) avoid immediately calling bzero() after malloc() by passing M_ZERO
2) do not initialize individual members of the global context to zero
3) remove an unused assignment of ifctx in bootpc_init()
Warner Losh [Thu, 7 Aug 2003 19:33:11 +0000 (19:33 +0000)]
MELCO has a similar product to Buffalo LPC3-CLX: named the same and
has the same product id, but different vendor id. It also appears
that the MELCO's id should be 0x18a instead of 0x8a01. Fix this.
Ruslan Ermilov [Thu, 7 Aug 2003 19:12:06 +0000 (19:12 +0000)]
Fix logic in Makefile.i386,v 1.249: only back up ${DESTDIR}${KODIR}
to ${DESTDIR}${KODIR}.old if we have booted from ${DESTDIR}${KODIR},
and always keep kern.bootfile in a good shape.
Jeffrey Hsu [Thu, 7 Aug 2003 18:16:59 +0000 (18:16 +0000)]
1. Basic PIM kernel support
Disabled by default. To enable it, the new "options PIM" must be
added to the kernel configuration file (in addition to MROUTING):
John Baldwin [Thu, 7 Aug 2003 15:04:27 +0000 (15:04 +0000)]
Consistently use the BSD u_int and u_short instead of the SYSV uint and
ushort. In most of these files, there was a mixture of both styles and
this change just makes them self-consistent.
Robert Watson [Thu, 7 Aug 2003 14:52:17 +0000 (14:52 +0000)]
Add additional documentation to setfacl(1) regarding the behavior of
tools such as chmod(1) and ls(1) when it comes to acting on objects
that have POSIX.1e extended ACLs. Specifically, discuss the
substitution of the mask entry for the group entry in the mode
representation of the ACL. Differently worded from the submission,
and could probably use further refinement.
PR: 55319
Submitted by: Grzegorz Czaplinski <G.Czaplinski@prioris.mini.pw.edu.pl>
Hartmut Brandt [Thu, 7 Aug 2003 14:30:58 +0000 (14:30 +0000)]
Make open channels persist across ifconfig down and up. All channels
that are not currently closing when the interface is configured down
will be brough up as soon as the interface is configured up.
John Baldwin [Thu, 7 Aug 2003 13:58:13 +0000 (13:58 +0000)]
The ktrace mutex does not need to be locked around the post of the ktrace
semaphore and doing so can lead to a possible reversal. WITNESS would have
caught this if semaphores were used more often in the kernel.
Hartmut Brandt [Thu, 7 Aug 2003 13:42:31 +0000 (13:42 +0000)]
Make the driver preserve open connections accross ifconfig down
and up commands. When configuring the interface down only the
connections that are currently closing are deleted from the connection
table. When the interface is configured up, all connections that
are in the table are re-opened.
Hartmut Brandt [Thu, 7 Aug 2003 10:40:24 +0000 (10:40 +0000)]
When configuring the interface down and up again try to re-open all
connections that have been open (and were not closing) when
the interface was stopped. This makes the behaviour of fatm(4) more like
the behaviour of en(4).
Tim J. Robbins [Thu, 7 Aug 2003 09:34:51 +0000 (09:34 +0000)]
Implement mblen(s, n) as mbtowc(NULL, s, n) to avoid calling sgetrune()
and to simplify things. This is only valid until we start supporting
state-dependent encodings.
Grok async contexts. When a thread is interrupted and an upcall
happens, the context of the interrupted thread is exported to
userland. Unlike most contexts, it will be an async context and
we cannot easily use our existing functions to set such a
context.
To avoid a lot of complexity that may possibly interfere with
the common case, we simply let the kernel deal with it. However,
we don't use the EPC based syscall path to invoke setcontext(2).
No, we use the break-based syscall path. That way the trapframe
will be compatible with the context we're trying to restore and
we save the kernel a lot of trouble. The kind of trouble we did
not want to go though ourselves...
However, we also need to set the threads mailbox and there's no
syscall to help us out. To avoid creating a new syscall, we use
the context itself to pass the information to the kernel so that
the kernel can update the mailbox. This involves setting a flag
(_MC_FLAGS_KSE_SET_MBOX) and setting ifa (the address) and isr
(the value).
Better define the flags in the mcontext_t and properly set the flags
when we create contexts. The meaning of the flags are documented in
<machine/ucontext.h>. I only list them here to help browsing the
commit logs:
_MC_FLAGS_ASYNC_CONTEXT
_MC_FLAGS_HIGHFP_VALID
_MC_FLAGS_KSE_SET_MBOX
_MC_FLAGS_RETURN_VALID
_MC_FLAGS_SCRATCH_VALID
Yes, _MC_FLAGS_KSE_SET_MBOX is a hack and I'm proud of it :-)
Tim J. Robbins [Thu, 7 Aug 2003 07:45:35 +0000 (07:45 +0000)]
Implement btowc() in terms of mbrtowc() instead of sgetrune(), and
wctob() in terms of wcrtomb() instead of sputrune(). There should be
no functional differences, but there may be a small performance hit
because we make an extra function call.
The aim here is to have as few functions as possible calling
s{get,put}rune() to make it easier to remove them in the future.
o Fix cut-n-paste whitespace corruption in previous commit
o For trap-based upcalls the argument (the kse_mailbox) to
the UTS must be written onto the kernel stack, not the
user stack. While here, deal with the fact that we may
be at a NaT collection point.
Martin Blapp [Thu, 7 Aug 2003 07:27:14 +0000 (07:27 +0000)]
- Fix the polling code to work with media settings in dhclient.conf.
- Rename linkstatus to linkstate which is more correct.
- Sort any leases each time we loose and regain link. With the first
version we spammed the dhclient.leases file.
- When there was no link on a interface, polling has been done twice.
This has been fixed with a bigger sleep interval.
- interface_active() now returns only a assumed state of the link.
If we are using media settings, we cannot be sure that the link
actually works. That means we assume that the link is working and
continue to send requests as usual on the interface and loop over
all possible media options. Polling is still done. If your interface
gets suddenly link, dhclient will send a dhcp discover request.
After all media settings have been tried a few times, dhclient will
sleep. If one does change networks very often, it can help to set the
"retry timeout" to a low value like 100 seconds. The default is over
six minutes.
Bill Paul [Thu, 7 Aug 2003 07:00:30 +0000 (07:00 +0000)]
Add preliminary support for the RealTek 8169 gigE chip. Changes:
- Fix a bug in rl_dma_map_desc(): set the 'end of ring' bit in the
right descriptor (DESC_CNT - 1, not DESC_CNT). The 8139C+ is limited
to 64 descriptors and automatically wraps at 64 descriptors even
if the EOR bit isn't set, but the 8169 NIC can have up to 1024
descriptors per ring, so we must set the wrap point in the right
place.
- RealTek moved the RL_TIMERINT register from offset 0x54 to 0x58 in
the 8169 -- account for this.
- Added rl_gmii_readreg() and rl_gmii_writereg() routines.
- Fix rl_probe() to deal with the case where the base type is
not RL_8139.
The next step is to add jumbo buffer support.
Tested with the Xterasys XN-152 NIC (hard to beat $29 for a gigE NIC).
In cpu_set_upcall_kse(), create the upcall according to the entry
path into the kernel. Normally it's due to a syscall, but one can
also be created as the result of a clock interrupt (for example).
This now even more looks like exec_setregs().
While here, add an assert that we don't expect more than 8KB of
dirty registers on the kernel stack.
o In revision 1.45 of exception.S we changed exception_restore to
unconditionally restore ar.k7 (kernel memory stack) and ar.k6
(kernel register stack). I don't know what I was smoking then,
but if you unconditionally restore ar.k6, you also want to
compute its value unconditionally. By having the computation
predicated and dependent on whether we return to user mode, we
would end up writing junk (= invalid value for ar.bspstore) if
we would return to kernel mode. But the whole point of the
unconditional restoration was that there is a grey area where
we still need to have ar.k6 restored. If we restore with a junk
value, we would end up wedging the machine on the next interrupt.
So, unconditionally calculate the value we unconditionally write
to ar.k6.
o The previous braino was found while making the following change:
We used to clear the lower 9 bits of the value we write to ar.k6.
The meaning being that we know that the kernel register stack is
at least 512 byte aligned and simply clearing the lower 9 bits
allows us to return to a context of which we don't have dirty
registers on the kernel stack, even though the context that
entered the kernel does have dirty registers on the kernel stack.
By masking-off the lower bits, we correctly obtain the base of
the register stack without having to worry that we didn't actually
reached the base while unwinding it.
The change is to mask off the lower 13 bits, knowing that the
kernel register stack is always 8KB aligned. The advantage is that
we don't have to worry anymore if there's more than 512 bytes of
dirty registers on the kernel stack. A situation that frequently
occurs. In exec_setregs() in machdep.c:1.147 or older, we had to
deal with that situation by copying the active portion of the
register stack down in multiples of 512 bytes. Now that we mask off
the lower 13 bits we don't have to do that at all. Contemporary
IPF processors have a register file that can hold up to 96 stacked
registers (=784 bytes [incl. 2 NaT collections]). With no indication
that register files grow beyond a couple of hundred registers, we
should not have to worry about it anymore... and yes, 640KB is
enough for everybody :-)
This change helps setcontext(2) and cpu_set_upcall_kse() in that
they can return to completely different contexts without having to
mess with the kernel stack. Of course exec_setregs() doesn't need
to do that anymore as well.
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