marius [Sun, 17 Oct 2010 11:51:55 +0000 (11:51 +0000)]
MFC: r213873
Explicitly lower the PIL to 0 as part of enabling interrupts, similar to
what is done on other platforms. Unlike as with the sched_throw(NULL)
called on BSPs during their startup apparently there's nothing which will
reliably lower it on APs. I'm unsure why this only came up on V215 though,
breaking these with r207248. My best guess is that these are the only
supported ones so far fast enough to lose some race.
kib [Sat, 16 Oct 2010 08:43:23 +0000 (08:43 +0000)]
MFC r213359:
Release the vnode lock and close the linker file vnode earlier in the
linker_load_file methods. This prevents the LOR between kernel linker sx
xlock and vnode lock.
kib [Fri, 15 Oct 2010 17:56:51 +0000 (17:56 +0000)]
MFC r209862:
For both i386 and amd64 pmap,
- change the type of pm_active to cpumask_t, which it is;
- in pmap_remove_pages(), compare with PCPU(curpmap), instead of
dereferencing the long chain of pointers [1].
For amd64 pmap, remove the unneeded checks for validity of curpmap
in pmap_activate(), since curpmap should be always valid after
r209789.
alc [Fri, 15 Oct 2010 05:42:35 +0000 (05:42 +0000)]
MFC r209605
Improve bufdone_finish()'s handling of the bogus page. Specifically, if
one or more mappings to the bogus page must be replaced, call pmap_qenter()
just once. Previously, pmap_qenter() was called for each mapping to the
bogus page.
MFC r209902
Change the implementation of vm_hold_free_pages() so that it performs at
most one call to pmap_qremove(), and thus one TLB shootdown, instead of one
call and TLB shootdown per page.
edwin [Fri, 15 Oct 2010 05:17:48 +0000 (05:17 +0000)]
MFC of r204697 r204706 r204849 r204908 r205071 r205427 r212032
r212032:
Use basename(3) to determine the name of the program.
Submitted by: Alexander Best <arundel@>
r205427:
Replace -b with -C and -B (as proposed by Alexander).
Add -3, -A and -B to the usage.
Update regression test for the new parameters.
r205071:
- With the introduction of -A, -B and -3, not all combinations of
arguments makes sense anymore. For example, what would a combination
of -3 (show three months) and -y (show the whole year) do?
We will abort on these cases.
- Move the debug option -d to -H (from highlight), while -d is now
used for setting the day of "today" so that -y and friends can
be tested.
r204908:
- Fix the highlighting for non-terminals when the last week is not
7 days long.
- "-m <N> <YYYY>" now prints only the month, not the whole year.
r204849:
- document the -3, -A and -B properly in Synopsis.
- add highlight of current date for non-terminals.
- fix -J option.
- code cleanup.
- Implement -3 option (show previous, this and next month) option.
- Add -A option (months after this month).
- Add -B option (months before this month).
- Fix highlighting of today in year overview.
- Fix aligning of "foreign" characters.
alc [Fri, 15 Oct 2010 03:23:53 +0000 (03:23 +0000)]
MFC r209789
Correctly maintain the per-cpu field "curpmap" on amd64 just like we
do on i386. The consequences of not doing so on amd64 became apparent
with the introduction of the COUNT_IPIS and COUNT_XINVLTLB_HITS
options. Specifically, single-threaded applications were generating
unnecessary IPIs to shoot-down the TLB on other processors.
MFC r209887
Reduce the number of global TLB shootdowns generated by pmap_qenter().
Specifically, teach pmap_qenter() to recognize the case when it is being
asked to replace a mapping with the very same mapping and not generate
a shootdown.
alc [Fri, 15 Oct 2010 02:58:49 +0000 (02:58 +0000)]
MFC r212873
Allow a POSIX shared memory object that is opened for read but not for
write to nonetheless be mapped PROT_WRITE and MAP_PRIVATE, i.e.,
copy-on-write.
nwhitehorn [Thu, 14 Oct 2010 13:56:26 +0000 (13:56 +0000)]
MFC r213406:
Fix two subtle problems in PPC32 RTLD. The first is a concurrency issue
where long PLT calls in multi-threaded environments could end up with
incorrect jmptab values. The second is that, after the addition of extended
PLT support, I forgot to update the PLT icache synchronization code to cover
the extended PLT instead of just the basic PLT.
obrien [Thu, 14 Oct 2010 01:21:44 +0000 (01:21 +0000)]
MFC r212770 & r212832:
+ Add the SCRIPT environmental variable to the sub-shell.
+ Add the 'command' argument (if supplied on the command line)
to the typescript file.
emaste [Thu, 14 Oct 2010 00:46:33 +0000 (00:46 +0000)]
MFC r212594:
Avoid repeatedly spamming the console while a timed out command is waiting
to complete. Instead, print one message after the timeout period expires,
and one more when (if) the command eventually completes.
gnn [Tue, 12 Oct 2010 22:10:07 +0000 (22:10 +0000)]
MFC 213691:
Add code to print the number and type of the CPU that is present in
the system as well has how many PMCs there are per CPU. In this code
CPU and core are equivalent.
jhb [Tue, 12 Oct 2010 19:28:20 +0000 (19:28 +0000)]
MFC 213226:
Rewrite the i386 memory probe:
- Check for SMAP data from the loader first. If it exists, don't bother
doing any VM86 calls at all. This will be more friendly for non-BIOS
boot environments such as EFI, etc.
- Move the base memory setup into a new basemem_setup() routine instead
of duplicating it.
- Simplify the XEN case by removing all of the VM86/SMAP parsing code rather
than just jumping over it.
- Adjust some comments to better explain the code flow.
gnn [Tue, 12 Oct 2010 19:07:36 +0000 (19:07 +0000)]
MFC 204310:
Moved mcgrab(1) into a separate directory -- our .mk infrastructure
doesn't currently have support for building multiple programs in a
single makefile.
While here, fixed manpages and makefiles (missing dependencies).
jhb [Tue, 12 Oct 2010 17:12:13 +0000 (17:12 +0000)]
MFC 213300:
If an RCS file is truncated, rcsfile_getdelta() will return NULL. Instead
of faulting, check for NULL. However, returning an error would cause csup
to just abort the entire update. Instead, break out of the loop and
return ok. The attempts to update the file will trigger a MD5 failure which
will cause csup to download the entire file as a fixup.
jhb [Tue, 12 Oct 2010 16:08:20 +0000 (16:08 +0000)]
MFC 213028,213328:
- Expand scope of tun/tap softc locks to cover more softc fields and
driver-maintained ifnet fields (such as if_drv_flags).
- Use soft locks as the mutex that protects each interface's knote list
rather than using the global knote list lock. Also, use the softc
for kn_hook instead of the cdev.
- Use mtx_sleep() instead of tsleep() when blocking in the read routines.
This fixes a lost wakeup race.
- Remove D_NEEDGIANT now that the cdevsw routines use the softc lock
where locking is needed.
- Lock IFQ when calculating the result for FIONREAD in tap(4). tun(4)
already did this.
- Remove remaining spl calls.
jhb [Tue, 12 Oct 2010 13:13:20 +0000 (13:13 +0000)]
MFC 205021:
- Use an initializer macro to initialize fields in 'fake' FILE objects used
by *sprintf(), etc.
- Explicitly initialize _fl_mutex to PTHREAD_MUTEX_INITIALIZER for all FILE
objects. This is currently a nop on FreeBSD, but is import for other
platforms (or in the future) where PTHREAD_MUTEX_INITIALIZER is not simply
zero.
avg [Mon, 11 Oct 2010 22:46:15 +0000 (22:46 +0000)]
MFC r210977:
When EC burst mode is activated and multiple bytes are accessed, do not
disable and enable repeatedly, just do it once per call. It also reduces
code duplication. Check all parameters early and fail immediately.
delphij [Mon, 11 Oct 2010 11:25:37 +0000 (11:25 +0000)]
MFC r213225:
Add a bandaid for a long-standing race condition during route entry
un-expiring.
The previous version of code have no locking when testing rt_refcnt.
The result of the lack of locking may result in a condition where
a routing entry have a reference count but at the same time have
RTPRF_OURS bit set and an expiration timer. These would eventually
lead to a panic:
panic: rtqkill route really not free
When the system have ICMP redirects accepted from local gateway
in a moderate frequency, for instance.
Commit this workaround for now until we have some better solution.
PR: kern/149804
Reviewed by: bz
Tested by: Zhao Xin, Pete French
ae [Mon, 11 Oct 2010 09:39:32 +0000 (09:39 +0000)]
GPART's control interface between kernel and user space has been
changed in r212614. Perform partial MFC of r213097 adapted to the
stable ABI:
Implement "force" (-F) option for gpart destroy verb.
This option doesn't passed to kernel and handled in user-space.
With -F option gpart creates new "delete" request for each
partition in table. Each request has flags="X" that disables
auto-commit feature. Last request is the original "destroy" request.
It has own flags and can have disabled or enabled auto-commit feature.
If error is occurred when deleting partitions, then new "undo" request
is created and all changes will be rolled back.
kaiw [Sun, 10 Oct 2010 12:20:04 +0000 (12:20 +0000)]
MFC r212373:
libelf is overly strict about the type and alignment of Elf_Data
objects inside one ELF section, which prevents the creation of a ELF
section with mixed data types. For example, gcc LTO use libelf to
create a .gnu_lto_XXX section that contains integers and a string
table, which doesn't work with our libelf implementation.
The changes made in this commit include:
* Allow Elf_Data type to be different than section type.
* Relax Elf_Data alignment check.
* Align each Elf_Data by their own alignment instead of section alignment.
mm [Sun, 10 Oct 2010 08:41:08 +0000 (08:41 +0000)]
- Add liblzma support to libarchive and usr.bin/tar
- Do not link usr.bin/ar to liblzma if building bootstrap-tools and
the local system doesn't include liblzma (fixes world build on FreeBSD 7.x)
MFC r212608 (by pjd):
All gpart(8) subcommands apart from the 'bootcode' subcommand handle
given geom/provider names with and without /dev/ prefix. Teach the
'bootcode' subcommand to handle /dev/<foo> names as well.
gavin [Sat, 9 Oct 2010 13:03:32 +0000 (13:03 +0000)]
Merge r213061 from head:
Various changes from various sources:
- Add "children" [1]
- Add "acknowledgement", "acknowledgment", "Austria" and "haunted" [2]
- Add "near", "antidisestablishmentarianism" and "Persephone" [2]
- "Transvaal" should be capitalized [2]
- Correct spelling of "structurelessness" and "Athena" [2]
- Add missing atomic elements [3]
- Add various words from "word of the day" lists [3]
PR: conf/149756 [1]
Submitted by: Nick Johnson <freebsd spatula.net> [1]
Obtained from: NetBSD [2], OpenBSD [3]
jilles [Sat, 9 Oct 2010 13:01:25 +0000 (13:01 +0000)]
MFC r211980: Correct value for _POSIX_AIO_LISTIO_MAX in <limits.h>.
All the "Minimum Values" (POSIX.1-2008 XBD 13 Headers <limits.h>) are now
correct. These should all be exactly as they are in the specification; the
possibly higher values we support are announced differently.
yongari [Fri, 8 Oct 2010 20:51:33 +0000 (20:51 +0000)]
MFC r212157:
Unlike most other controllers, NS DP83815/DP83816 controllers seem
to pad with 0xFF when it encounter short frames. According to RFC
1042 the pad bytes should be 0x00.
Because manual padding consumes extra CPU cycles, introduce a new
tunable which controls the padding behavior. Turning this tunable
on will have driver pad manually but it's disabled by default. Users
can enable software padding by setting the following tunable to
non-zero value.
yongari [Fri, 8 Oct 2010 20:48:09 +0000 (20:48 +0000)]
MFC r212121,212156:
r212121:
Move sis_reset() to sis_initl(). This ensures driver starts with
known good state of controller.
r212156:
Fix the last endianness issue on handling station address which
prevented driver from working on big-endian machines. Also rewrite
station address programming to make it work on strict-alignment
architectures. With this change, sis(4) now works on sparc64 and
performance number looks good even though sis(4) have to apply
fixup code to align received frames on 2 bytes boundary on sparc64.
yongari [Fri, 8 Oct 2010 20:39:45 +0000 (20:39 +0000)]
MFC r212117,212119:
rr212117:
Report result of link state change to caller. Previously it always
returned success.
r212119:
Do not reinitialize controller whenever promiscuous mode or
allmulti is toggled. Controller does not require reinitialization.
This removes unnecessary controller reinitialization whenever
tcpdump is used.
While I'm here remove unnecessary variable reinitialization.
yongari [Fri, 8 Oct 2010 20:33:43 +0000 (20:33 +0000)]
MFC r212116:
Overhaul link state change handling. Previously sis(4) blindly
configured TX/RX MACs before getting a valid link. After that, when
link state change callback is called, it called device
initialization again to reconfigure TX/RX MACs depending on
resolved link state. This hack created several bad side effects and
it required more hacks to not collide with sis_tick callback as
well as disabling switching to currently selected media in device
initialization. Also it seems sis(4) was used to be a template
driver for long time so other drivers which was modeled after
sis(4) also should be changed.
TX/RX MACs are now reconfigured after getting a valid link. Fix for
short cable error is also applied after getting a link because it's
only valid when the resolved speed is 100Mbps.
While I'm here slightly reorganize interrupt handler such that
sis(4) always read SIS_ISR register to see whether the interrupt is
ours or not. This change removes another hack and make it possible
to nuke sis_stopped variable in softc.
yongari [Fri, 8 Oct 2010 20:18:44 +0000 (20:18 +0000)]
MFC r212109,212124,212185:
r212109:
bus_dma(9) cleanup.
o Enforce TX/RX descriptor ring alignment. NS data sheet says the
controller needs 4 bytes alignment but use 16 to cover both SiS
and NS controllers. I don't have SiS data sheet so I'm not sure
what is alignment restriction of SiS controller but 16 would be
enough because it's larger than the size of a TX/RX descriptor.
Previously sis(4) ignored the alignment restriction.
o Enforce RX buffer alignment, 4.
Previously sis(4) ignored RX buffer alignment restriction.
o Limit number of TX DMA segment to be used to 16. It seems
controller has no restriction on number of DMA segments but
using more than 16 looks resource waste.
o Collapse long mbuf chains with m_collapse(9) instead of calling
expensive m_defrag(9).
o TX/RX side bus_dmamap_load_mbuf_sg(9) support and remove
unnecessary callbacks.
o Initial endianness support.
o Prefer local alignment fixup code to m_devget(9).
o Pre-allocate TX/RX mbuf DMA maps instead of creating/destroying
these maps in fast TX/RX path. On non-x86 architectures, this is
very expensive operation and there is no need to do that.
o Add missing bus_dmamap_sync(9) in TX/RX path.
o watchdog is now unarmed only when there are no pending frames
on controller. Previously sis(4) blindly unarmed watchdog
without checking the number of queued frames.
o For efficiency, loaded DMA map is reused for error frames.
o DMA map loading failure is now gracefully handled. Previously
sis(4) ignored any DMA map loading errors.
o Nuke unused macros which are not appropriate for endianness
operation.
o Stop embedding driver maintained structures into descriptor
rings. Because TX/RX descriptor structures are shared between
host and controller, frequent bus_dmamap_sync(9) operations are
required in fast path. Embedding driver structures will increase
the size of DMA map which in turn will slow down performance.
r212124:
Fix stupid error in r212109 which didn't swap DMA maps. This caused
IOMMU panic on sparc64 under high TX load.
r212185:
Fix another bug introduced in r212109. We should unload DMA maps
only after sending the last fragment of a frame so the mbuf pointer
also should be stored in the last descriptor index.
yongari [Fri, 8 Oct 2010 19:27:34 +0000 (19:27 +0000)]
MFC r212971:
Remove unnecessary controller reinitialization.
StarFire controller does not require controller reinitialization to
program perfect filters. While here, make driver immediately exit
from interrupt/polling handler if driver reinitialized controller.
yongari [Fri, 8 Oct 2010 19:24:38 +0000 (19:24 +0000)]
MFC r212969:
Make sure to clear IFF_DRV_RUNNING to reinitialize controller.
While I'm here update if_oerrors counter when driver encounters
watchdog timeout.
yongari [Fri, 8 Oct 2010 18:49:59 +0000 (18:49 +0000)]
MFC r212069,212071:
r212069:
bge_txeof() already checks whether it has to free transmitted mbufs
or not by comparing reported TX consumer index with saved index. So
remove unnecessary check done after freeing transmitted mbufs.
While I'm here nuke unnecessary variable initializations.
r212071:
Remove unnecessary atomic operation in bge_poll. bge(4) always
holds a driver lock in the function entry and
memory synchronization is handled by bus_dmamap_sync(9).
yongari [Fri, 8 Oct 2010 18:43:06 +0000 (18:43 +0000)]
MFC r212061,212065,212302:
r212061:
Split common parent DMA tag into ring DMA tag and TX/RX mbuf DMA
tag. All controllers that are not BCM5755 or higher have 4GB
boundary DMA bug. Previously bge(4) used 32bit DMA address to
workaround the bug(r199670). However this caused the use of bounce
buffers such that it resulted in poor performance for systems which
have more than 4GB memory. Because bus_dma(9) honors boundary
restriction requirement of DMA tag for dynamic buffers, having a
separate TX/RX mbuf DMA tag will greatly reduce the possibility of
using bounce buffers. For DMA buffers allocated with
bus_dmamem_alloc(9), now bge(4) explicitly checks whether the
requested memory region crossed the boundary or not.
With this change, only the DMA buffer that crossed the boundary
will use 32bit DMA address. Other DMA buffers are not affected as
separate DMA tag is created for each DMA buffer.
Even if 32bit DMA address space is used for a buffer, the chance to
use bounce buffer is still very low as the size of buffer is small.
This change should eliminate most usage of bounce buffers on
systems that have more than 4GB memory.
More correct fix would be teaching bus_dma(9) to honor boundary
restriction for buffers created with bus_dmamem_alloc(9) but it
seems that is not easy.
While I'm here cleanup bge_dma_map_addr() and remove unnecessary
member variables in bge_dmamap_arg structure.
Tested by: marcel
r212065:
Handle PAE case correctly. You cannot effectively specify a 4GB
boundary in PAE case so use a 2GB boundary for PAE as suggested by
jhb.
Pointed out by: jhb
Reviewed by: jhb
r212302:
Make sure to create DMA'able memory for statistics block. This was
missed in r212061 and it caused crashes for 570x controllers as
controller DMAed statistics to physical address 0.
yongari [Fri, 8 Oct 2010 18:19:05 +0000 (18:19 +0000)]
MFC r213306:
Rename rl_setmulti() to rl_rxfilter() as rl_rxfilter() will handle
IFF_ALLMULTI/IFF_PROMISC as well as multicast filter configuration.
Rewrite RX filter logic to reduce number of register accesses and
make it handle promiscuous/allmulti toggling without controller
reinitialization.
Previously rl(4) counted on controller reinitialization to reprogram
promiscuous configuration but r211767 resulted in avoiding
controller reinitialization whenever promiscuous mode is toggled.
To address this, keep track of driver's view of interface state and
handle IFF_ALLMULTI/IFF_PROMISC changes without reinitializing
controller. This should fix a regression introduced in r211267.
While I'm here remove unnecessary variable reassignment in ioctl
handler.
emaste [Fri, 8 Oct 2010 14:59:14 +0000 (14:59 +0000)]
MFC r213013:
Move test for zero bufp or size before rseq and wseq calculation. This
avoids spinning in an infinite loop for some (possibly corrupt?) core
files at work.
emaste [Fri, 8 Oct 2010 14:56:39 +0000 (14:56 +0000)]
MFC r212570:
Allow a kernel config to specify a set but empty value via
'makeoptions OPTION=' for consistency with the make commandline.
Previously 'makeoptions WERROR=' would result in a syntax error; now
it produces the same effect as 'makeoptions WERROR'. Both forms now
result in 'WERROR=' in the generated Makefile.
delphij [Thu, 7 Oct 2010 00:36:58 +0000 (00:36 +0000)]
MFC r211059:
Address an edge condition that we found at work, where the carp(4)
interface goes to issue LINK_UP, then LINK_DOWN, then LINK_UP at
cold boot. This behavior is not observed when carp(4) interface
is created slightly later, when the underlying interface is fully
up.
Before this change what happen at boot is roughly:
- ifconfig creates em0 interface;
- ifconfig clones a carp device using em0;
(em0's link state is DOWN at this point)
- carp state: INIT -> BACKUP [*]
- carp state: BACKUP -> MASTER
- [Some negotiate between em0 and switch]
- em0 kicks up link state change event
(em0's link state is now up DOWN at this point)
- do_link_state_change() -> carp_carpdev_state()
- carp state: MASTER -> INIT (via carp_set_state(sc, INIT)) [+]
- carp state: INIT -> BACKUP
- carp state: BACKUP -> MASTER
At the [*] stage, em0 did not received any broadcast message from other
node, and assume our node is the master, thus carp(4) sets the link
state to "UP" after becoming a master. At [+], the master status
is forcely set to "INIT", then an election is casted, after which our
node would actually become a master.
We believe that at the [*] stage, the master status should remain as
"INIT" since the underlying parent interface's link state is not up.
Obtained from: iXsystems, Inc.
Reported by: jpaetzel
projects / FreeBSD / stable / 8.git / log