Commit Graph

82868 Commits

Author SHA1 Message Date
nwhitehorn
a03821b388 Reorder statistics tracking and table lock acquisitions already in place
to avoid race conditions updating the PVO statistics.
2010-09-09 16:06:55 +00:00
rmacklem
3a255aa391 Fix the experimental NFS client so that it doesn't panic when
NFSv2,3 byte range locking is attempted. A fix that allows the
nlm_advlock() to work with both clients is in progress, but
may take a while. As such, I am doing this commit so that
the kernel doesn't panic in the meantime.

Submitted by:	jh
MFC after:	2 weeks
2010-09-09 15:45:11 +00:00
nwhitehorn
6a5624ed41 On architectures with non-tree-based page tables like PowerPC, every page
in a range must be checked when calling pmap_remove(). Calling
pmap_remove() from vm_pageout_map_deactivate_pages() with the entire range
of the map could result in attempting to demap an extraordinary number
of pages (> 10^15), so iterate through each map entry and unmap each of
them individually.

MFC after:	6 weeks
2010-09-09 13:32:58 +00:00
nwhitehorn
258c3c9135 Fix a problem where device detection would work unreliably on Serverworks
K2 SATA controllers. The chip's status register must be read first, and
as a long, for other registers to be correctly updated after a command, and
this includes the command sequence in device detection as well as the
previously handled case after interrupts. While here, clean up some
previous hacks related to this controller.

Reported by:	many
Reviewed by:	mav
MFC after:	3 weeks
2010-09-09 13:17:30 +00:00
rpaulo
a2f2f93652 Fix two bugs in DTrace:
* when the process exits, remove the associated USDT probes
* when the process forks, duplicate the USDT probes.

Sponsored by:	The FreeBSD Foundation
2010-09-09 09:58:05 +00:00
pjd
621aa135f8 Remove VI_MOUNT flag from vnode on VFS_MOUNT() failure. 2010-09-09 07:55:13 +00:00
ed
ae95b625e3 Let psm(4) use si_drv1 to refer to its softc. 2010-09-09 07:52:15 +00:00
jchandra
2523c85b33 Minor clean up for nlge - nlna_submit_rx_free_desc() can use the same desc
every time. Also merge couple of one-line functions into their caller.
2010-09-09 02:52:44 +00:00
yongari
efc81f0393 Correct definition of T2 mode bit of MRBE Message Page 5 Next Page
Control Register.
2010-09-08 21:08:54 +00:00
pjd
cb66a2a961 Doing first mount and updating mount points are both handled by the same
syscall and the same function, but are very different and share almost no code.
To make it easier to read and analyze, split vfs_domount() into
vfs_domount_first() and vfs_domount_update().

Reviewed by:	kib
2010-09-08 21:00:53 +00:00
pjd
86d6e6cf79 - Log all the problems in devfs_fixup().
- Correct error paths. The system will be useless on devfs_fixup() failure, so
  why bother?  Maybe for the same reason why a dead body is washed and dressed
  in a nice suit before it is put into a coffin? Maybe system's last will is to
  panic without any locks held?

Reviewed by:	kib
2010-09-08 20:56:18 +00:00
jhb
80b81c30a1 If autoboot_delay is set to -1, boot immediately without checking for
a keypress to match the behavior of the loader.

PR:		docs/108101
Submitted by:	Wayne Sierke  ws of au.dyndns.ws
Tested by:	brd
MFC after:	1 week
2010-09-08 20:10:29 +00:00
mav
026629bb9d Add few more bintime math macros. 2010-09-08 20:09:50 +00:00
emax
baa1b2ead9 Add custom kernel configuration and device tree source files for
Seagate FreeAgent DockStar(tm) device. It seems to be a dumb down
version of Marvell SheevaPlug. Device tree source file could use
more tweaking, but at least it wll network boot and run FreeBSD/arm.
2010-09-08 19:50:47 +00:00
nwhitehorn
04e78f792b Fix a printf specifier on 64-bit systems. 2010-09-08 19:28:43 +00:00
jhb
1ced550055 - Add register definitions related to extended capability IDs in
PCI-express.  I used PCIZ_* for ID constants (plain capability IDs use
  PCIY_*).
- Add register definitions for the Advanced Error Reporting, Virtual
  Channels, and Device Serial Number extended capabilities.
- Teach pciconf -c to list extended as well as plain capabilities.   Adds
  more detailed parsing for AER, VC, and device serial numbers.

MFC after:	2 weeks
2010-09-08 17:53:34 +00:00
avg
ef26efcc43 subr_bus: use hexadecimal representation for bit flags
It seems that this format is more custom in our code, and it is more
convenient too.

Suggested by:	jhb
No objection:	imp
MFC after:	1 week
2010-09-08 17:35:06 +00:00
jchandra
9396bcb9a7 nlge (alternate XLR GMAC driver) updates:
- Updates for the message ring clean up in r212321.
- Instead of dropping Tx packet on credit fail, retry send until it
  succeeds.
- Fix freeing mbufs in case of P2P descriptors:
  We cannot free the mbuf when the P2P descriptor freeback is received. The
  mbuf may be still in use by the GMAC, since the P2P freeback indicates that
  it read the P2D descriptors in the P2P message.
  Now we free just the P2P descriptor when the P2P freeback message is
  received.  Another freeback P2D message has been added to the end of
  the packet descriptors, the mbuf will be freed only when we received
  this.

The P2P descriptor issue was reported by srgorti at netlogicmicro dot com.
2010-09-08 17:11:49 +00:00
mav
c7fe35c363 During SMP startup there is time window, when SMP started, but interrupts
are still bound to BSP. It confuses timer management logic in per-CPU mode
and may cause timer not being reloaded. Check such cases on interrupt
arival and reload timer to give system some more time to manage proper
binding.
2010-09-08 16:59:22 +00:00
nwhitehorn
e956a1ec84 Fix a typo in the original import of this code from NetBSD that caused the
wrong element of the VSID bitmap array to be examined after a collision,
leading to reallocation of in-use VSIDs under some circumstances, with
attendant memory corruption. Also add an assert to check for this kind of
problem in the future.

MFC after:	4 days
2010-09-08 16:58:06 +00:00
jchandra
26d5f66d94 Clean up fast message ring code for XLR.
Fix message ring send path:
- define msgrng_access_enable() which disables local interrupts
  and enables message ring access. Also define msgrng_restore() which
  restores interrupts
- remove all other msgrng enable/disable macros, no need of critical_enter
  and other locking here.
- message_send() fixup: re-read status until pending bit clears
- message_send_retry() fixup: retry only few times with interrupts disabled
- Fix up message_send/message_send_retry callers - call
  msgrng_access_enable() and msgrng_restore() correctly so that interrupts
  are not disabled for long.
- removed unused and obsolete code from sys/mips/rmi/msgring.h
- some style fixes - more later

rge.c (XLR GMAC driver):
- updated for the message ring changes
- remove unused message_send_block()
- retry on credit failure, this is not a permanent failure when credits
  are configured correctly. Add panic if credits are not available to
  send for a long time.
2010-09-08 16:34:08 +00:00
nwhitehorn
6e924b9074 Fix an error made in r209975 related to context ID allocation for 64-bit
PowerPC CPUs running a 32-bit kernel. This bug could cause in-use VSIDs
to be allocated again to another process, causing memory space overlaps
and corruption.

Reported by:	linimon
2010-09-07 23:31:48 +00:00
yongari
f6187ec6d3 Consistently use tab characters instead of tab + space characters.
No functional changes.
2010-09-07 23:08:38 +00:00
yongari
7c0f4a983b Remove trailing CR at EOL. 2010-09-07 22:44:29 +00:00
ivoras
6803865312 Avoid "Entry can disappear before we lock fdvp" panic.
PR:		150143
Submitted by:	Gleb Kurtsou <gk at FreeBSD.org>
Pretty sure it won't blow up: mckusick
MFC after:	2 weeks
2010-09-07 22:40:45 +00:00
jfv
675ed4bcb2 Code correction in refresh_mbufs, just continuing
without index recalc was wrong.
2010-09-07 21:28:45 +00:00
jfv
62814bf50c Tighten up the rx mbuf refresh code, there were some
discrepencies from the igb version which was the target.

Change the message when neither MSI or MSIX are enabled
and a fallback to Legacy interrupts happen, the existing
message was confusing.
2010-09-07 20:13:08 +00:00
yongari
be2f46c2bb 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.

Reported by:	kan
2010-09-07 18:29:29 +00:00
jhb
0f939dc96e Store the full timestamp when caching timestamps of files and
directories for purposes of validating name cache entries.  This
closes races where two updates to a file or directory within the same
second could result in stale entries in the name cache.  While here,
remove the 'n_expiry' field as it is no longer used.

Reviewed by:	rmacklem
MFC after:	1 week
2010-09-07 14:29:45 +00:00
jhb
b33adc1bec Each processor socket in a QPI system has a special PCI bus for the
"uncore" devices (such as the memory controller) in that socket.  Stop
hardcoding support for two busses, but instead start probing buses at
domain 0, bus 255 and walk down until a bus probe fails.  Also, do not probe
a bus if it has already been enumerated elsewhere (e.g. if ACPI ever
enumerates these buses in the future).
2010-09-07 13:50:02 +00:00
jchandra
1137e0153e PCIe updates for XLS.
Fix interrupt routing so that the irq returned is correct for XLR and
XLS. This also updates the MSI hack we had earlier - we still don't
really support MSI, but we support some drivers that use MSI, by providing
support for allocating one MSI per pci link - this MSI is directly
mapped to the link IRQ.
2010-09-07 07:31:58 +00:00
jchandra
714cd124db Whitespace fixes - indent with tabs instead of spaces.
Few other style(9) changes.
2010-09-07 06:02:43 +00:00
jchandra
d4b2fdabb4 On boards with >512MB memory, the result of vtophys cannot be converted
to KSEG1 address - use pmap_mapdev/pmap_unmapdev instead.

Remove unused variable maxphys.
2010-09-07 05:39:24 +00:00
rstone
62d7f50b87 Fix a typo in r212281. uintptr -> uintptr_t
Pointy hat to:  rstone

Approved by:    emaste (mentor)
MFC after:      2 weeks
2010-09-07 02:51:11 +00:00
rstone
0dd3ce30eb In munmap() downgrade the vm_map_lock to a read lock before taking a read
lock on the pmc-sx lock.  This prevents a deadlock with
pmc_log_process_mappings, which has an exclusive lock on pmc-sx and tries
to get a read lock on a vm_map.  Downgrading the vm_map_lock in munmap
allows pmc_log_process_mappings to continue, preventing the deadlock.

Without this change I could cause a deadlock on a multicore 8.1-RELEASE
system by having one thread constantly mmap'ing and then munmap'ing a
PROT_EXEC mapping in a loop while I repeatedly invoked and stopped pmcstat
in system-wide sampling mode.

Reviewed by:	fabient
Approved by:	emaste (mentor)
MFC after:	2 weeks
2010-09-07 00:23:45 +00:00
nwhitehorn
4701f590b3 Fix the same race condition on 32-bit AIM CPUs that was fixed for 64-bit
ones in r211967 involving VSID allocation.
2010-09-06 23:07:58 +00:00
will
99af9c6710 Fix CARP in backup mode by properly registering its hooks for INET and INET6
using ipproto_{un,}register() and the newly created ip6proto_{un,}register()
so that it can again receive IPPROTO_CARP packets allowing its state machine
to work.

Reviewed by:	bz
Approved by:	ken (mentor)
2010-09-06 21:06:06 +00:00
will
b24b51b25f Fix static kernel builds with carp(4) by changing its SYSINIT order so that
it is initialized after basic protocol initialization, which allows it to
register via pf_proto_register().

Reviewed by:	bz
Approved by:	ken (mentor)
2010-09-06 21:03:30 +00:00
glebius
d14214d82c in_delayed_cksum() requires host byte order.
Reported by:	Alexander Levin <amindomao googlemail.com>
MFC after:	1 week
2010-09-06 13:17:01 +00:00
avg
05028ea8b3 acpi_hp: fix bus attachment code
- add identify method to create driver's own device_t
- successfully probe only driver's own device_t instead of any device_t
- (ab)use device order to hopefully be probed/attached after acpi_wmi

PR:		kern/147858
Tested by:	Maciej Suszko <maciej@suszko.eu>
MFC after:	1 week
2010-09-06 07:34:32 +00:00
jchandra
9b66f5dc60 XLR/XLS hardware interrupts should be programmed level triggered at the
PIC.  This should fix the interrupt releated issues seen after the
interrupt handling re-write for SMP.
2010-09-06 06:18:49 +00:00
tuexen
908a61906a Implement correct handling of address parameter and
sendinfo for SCTP send calls.

MFC after: 4 weeks.
2010-09-05 20:13:07 +00:00
mav
d23fcb99b7 Add support for the Sharp/Micron flash chips to powermac_mvram(4).
Tested on PowerMac G4 AGP.

Reviewed by:	nwhitehorn
2010-09-05 20:04:02 +00:00
mav
90db0224ff Make nexus report name and compat fields as pnpinfo for devices on the
first level of hierarchy, same as done on deeper levels.
2010-09-05 19:57:24 +00:00
mav
ece17c923a Several improvements to HPET driver:
- Add special check for case when time expires before being programmed.
This fixes interrupt loss and respectively timer death on attempt to
program very short interval. Increase minimal supported period to more
realistic value.
 - Add support for hint.hpet.X.allowed_irqs tunable, allowing manually
specify which interrupts driver allowed to use. Unluckily, many BIOSes
program wrong allowed interrupts mask, so driver tries to stay on safe
side by not using unshareable ISA IRQs. This option gives control over
this limitation, allowing more per-CPU timers to be provided, when FSB
interrupts are not supported. Value of this tunable is bitmask.
 - Do not use regular interrupts on virtual machines. QEMU and VirtualBox
do not support them properly, that may cause problems. Stay safe by default.
Same time both QEMU and VirtualBox work fine in legacy_route mode.
VirtualBox also works fine if manually specify allowed ISA IRQs with above.
2010-09-05 19:24:32 +00:00
rrs
27478be4a5 Fix some CLANG warnings. One clang warning is left
due to the fact that its bogus.. nam->sa_family will
not change from AF_INET6 to AF_INET (but clang
thinks it does ;-D)
2010-09-05 13:41:45 +00:00
fabient
dd461c3739 Fix invalid class removal when IAF is not the last class.
Keep IAF class with 0 PMC and change the alias in libpmc to IAP.

MFC after:	1 week
2010-09-05 13:31:14 +00:00
mav
4f9dee93a3 Initialize buffer for case of empty string. Happens only on non-refactored
platforms.
2010-09-05 06:16:04 +00:00
daichi
6f5cfa0928 Allowed unionfs to use whiteout not supporting file system as
upper layer. Until now, unionfs prevents to use that kind of
file system as upper layer. This time, I changed to allow
that kind of file system as upper layer. By this change, you
can use whiteout not supporting file system (e.g., especially
for tmpfs) as upper layer. It's very useful for combination of
tmpfs as upper layer and read only file system as lower layer.

By difinition, without whiteout support from the file system
backing the upper layer, there is no way that delete and rename
operations on lower layer objects can be done.  EOPNOTSUPP is
returned for this kind of operations as generated by VOP_WHITEOUT()
along with any others which would make modifica tions to the
lower layer, such as chmod(1).

This change is suggested by ed.

Submitted by:	ed
2010-09-05 04:58:16 +00:00
rmacklem
c42ae211aa Change the code in ncl_bioread() in the experimental NFS
client to return an error when rabp is not set, so it
behaves the same way as the regular NFS client for this
case. It does not affect NFSv4, since nfs_getcacheblk()
only fails for "intr" mounts and NFSv4 can't use the
"intr" mount option.

MFC after:	2 weeks
2010-09-05 00:47:44 +00:00